diff --git a/NEWS.md b/NEWS.md
index 4afbaec7..b1acef78 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -2,7 +2,10 @@
 
 ## 2.26.3
 
-Released 2016-mm-dd
+Released 2016-03-03
+
+Improvements:
+ - Optimize overviews queries for efficient spatial filtering in PostgreSQL
 
 
 ## 2.26.2
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 1cfa9c89..14d585bd 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -84,14 +84,14 @@
               "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz"
             },
             "mime-types": {
-              "version": "2.1.10",
+              "version": "2.1.9",
               "from": "mime-types@>=2.1.9 <2.2.0",
-              "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.10.tgz",
+              "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.9.tgz",
               "dependencies": {
                 "mime-db": {
-                  "version": "1.22.0",
-                  "from": "mime-db@>=1.22.0 <1.23.0",
-                  "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.22.0.tgz"
+                  "version": "1.21.0",
+                  "from": "mime-db@>=1.21.0 <1.22.0",
+                  "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.21.0.tgz"
                 }
               }
             }
@@ -192,14 +192,14 @@
           "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.2.13.tgz",
           "dependencies": {
             "mime-types": {
-              "version": "2.1.10",
+              "version": "2.1.9",
               "from": "mime-types@>=2.1.6 <2.2.0",
-              "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.10.tgz",
+              "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.9.tgz",
               "dependencies": {
                 "mime-db": {
-                  "version": "1.22.0",
-                  "from": "mime-db@>=1.22.0 <1.23.0",
-                  "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.22.0.tgz"
+                  "version": "1.21.0",
+                  "from": "mime-db@>=1.21.0 <1.22.0",
+                  "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.21.0.tgz"
                 }
               }
             },
@@ -257,7 +257,7 @@
           "dependencies": {
             "unpipe": {
               "version": "1.0.0",
-              "from": "unpipe@1.0.0",
+              "from": "unpipe@>=1.0.0 <1.1.0",
               "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz"
             }
           }
@@ -372,7 +372,7 @@
         },
         "type-is": {
           "version": "1.6.11",
-          "from": "type-is@>=1.6.10 <1.7.0",
+          "from": "type-is@>=1.6.6 <1.7.0",
           "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.11.tgz",
           "dependencies": {
             "media-typer": {
@@ -381,14 +381,14 @@
               "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz"
             },
             "mime-types": {
-              "version": "2.1.10",
+              "version": "2.1.9",
               "from": "mime-types@>=2.1.6 <2.2.0",
-              "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.10.tgz",
+              "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.9.tgz",
               "dependencies": {
                 "mime-db": {
-                  "version": "1.22.0",
-                  "from": "mime-db@>=1.22.0 <1.23.0",
-                  "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.22.0.tgz"
+                  "version": "1.21.0",
+                  "from": "mime-db@>=1.21.0 <1.22.0",
+                  "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.21.0.tgz"
                 }
               }
             }
@@ -520,9 +520,9 @@
       "resolved": "https://registry.npmjs.org/request/-/request-2.62.0.tgz",
       "dependencies": {
         "bl": {
-          "version": "1.0.3",
+          "version": "1.0.2",
           "from": "bl@>=1.0.0 <1.1.0",
-          "resolved": "https://registry.npmjs.org/bl/-/bl-1.0.3.tgz",
+          "resolved": "https://registry.npmjs.org/bl/-/bl-1.0.2.tgz",
           "dependencies": {
             "readable-stream": {
               "version": "2.0.5",
@@ -585,7 +585,7 @@
           "dependencies": {
             "async": {
               "version": "1.5.2",
-              "from": "async@>=1.0.0 <2.0.0",
+              "from": "async@>=1.4.0 <2.0.0",
               "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz"
             }
           }
@@ -596,14 +596,14 @@
           "resolved": "https://registry.npmjs.org/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz"
         },
         "mime-types": {
-          "version": "2.1.10",
-          "from": "mime-types@>=2.1.9 <2.2.0",
-          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.10.tgz",
+          "version": "2.1.9",
+          "from": "mime-types@>=2.1.2 <2.2.0",
+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.9.tgz",
           "dependencies": {
             "mime-db": {
-              "version": "1.22.0",
-              "from": "mime-db@>=1.22.0 <1.23.0",
-              "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.22.0.tgz"
+              "version": "1.21.0",
+              "from": "mime-db@>=1.21.0 <1.22.0",
+              "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.21.0.tgz"
             }
           }
         },
@@ -724,21 +724,14 @@
               "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.1.tgz",
               "dependencies": {
                 "ansi-styles": {
-                  "version": "2.2.0",
+                  "version": "2.1.0",
                   "from": "ansi-styles@>=2.1.0 <3.0.0",
-                  "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.0.tgz",
-                  "dependencies": {
-                    "color-convert": {
-                      "version": "1.0.0",
-                      "from": "color-convert@>=1.0.0 <2.0.0",
-                      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.0.0.tgz"
-                    }
-                  }
+                  "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.1.0.tgz"
                 },
                 "escape-string-regexp": {
-                  "version": "1.0.5",
+                  "version": "1.0.4",
                   "from": "escape-string-regexp@>=1.0.2 <2.0.0",
-                  "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz"
+                  "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.4.tgz"
                 },
                 "has-ansi": {
                   "version": "2.0.0",
@@ -753,9 +746,9 @@
                   }
                 },
                 "strip-ansi": {
-                  "version": "3.0.1",
+                  "version": "3.0.0",
                   "from": "strip-ansi@>=3.0.0 <4.0.0",
-                  "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+                  "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.0.tgz",
                   "dependencies": {
                     "ansi-regex": {
                       "version": "2.0.0",
@@ -784,9 +777,9 @@
               }
             },
             "is-my-json-valid": {
-              "version": "2.13.1",
+              "version": "2.12.4",
               "from": "is-my-json-valid@>=2.12.0 <3.0.0",
-              "resolved": "https://registry.npmjs.org/is-my-json-valid/-/is-my-json-valid-2.13.1.tgz",
+              "resolved": "https://registry.npmjs.org/is-my-json-valid/-/is-my-json-valid-2.12.4.tgz",
               "dependencies": {
                 "generate-function": {
                   "version": "2.0.0",
@@ -3732,6 +3725,7 @@
         "turbo-cartocss": {
           "version": "0.4.0",
           "from": "turbo-cartocss@>=0.4.0 <0.5.0",
+          "resolved": "https://registry.npmjs.org/turbo-cartocss/-/turbo-cartocss-0.4.0.tgz",
           "dependencies": {
             "browser-request": {
               "version": "0.3.3",
@@ -3819,9 +3813,9 @@
               }
             },
             "postcss": {
-              "version": "5.0.16",
+              "version": "5.0.19",
               "from": "postcss@>=5.0.13 <6.0.0",
-              "resolved": "https://registry.npmjs.org/postcss/-/postcss-5.0.16.tgz",
+              "resolved": "https://registry.npmjs.org/postcss/-/postcss-5.0.19.tgz",
               "dependencies": {
                 "supports-color": {
                   "version": "3.1.2",
@@ -3868,9 +3862,28 @@
                   "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.6.0.tgz"
                 },
                 "aws4": {
-                  "version": "1.2.1",
+                  "version": "1.3.2",
                   "from": "aws4@>=1.2.1 <2.0.0",
-                  "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.2.1.tgz"
+                  "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.3.2.tgz",
+                  "dependencies": {
+                    "lru-cache": {
+                      "version": "4.0.0",
+                      "from": "lru-cache@>=4.0.0 <5.0.0",
+                      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-4.0.0.tgz",
+                      "dependencies": {
+                        "pseudomap": {
+                          "version": "1.0.2",
+                          "from": "pseudomap@>=1.0.1 <2.0.0",
+                          "resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz"
+                        },
+                        "yallist": {
+                          "version": "2.0.0",
+                          "from": "yallist@>=2.0.0 <3.0.0",
+                          "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.0.0.tgz"
+                        }
+                      }
+                    }
+                  }
                 },
                 "bl": {
                   "version": "1.0.3",