Added config parameter to windshaft in order to use postgres' function ST_RemoveRepeatedPoints (set false by the default)

Conflicts:
	lib/cartodb/server_options.js

config/environments/development.js.example

@@ -163,6 +163,10 @@ var config = {
               // Returning the portion of a geometry falling within a rectangle
               // It will only work if snapToGrid is enabled
               clipByBox2d: false, // this requires postgis >=2.2 and geos >=3.5
+              // geometries will be simplified using ST_RemoveRepeatedPoints
+              // which cost is no more expensive than snapping and results are
+              // much closer to the original geometry
+              removeRepeatedPoints: false // this requires postgis >=2.2
           }
 
       },

config/environments/production.js.example

@@ -157,6 +157,10 @@ var config = {
               // Returning the portion of a geometry falling within a rectangle
               // It will only work if snapToGrid is enabled
               clipByBox2d: false, // this requires postgis >=2.2 and geos >=3.5
+              // geometries will be simplified using ST_RemoveRepeatedPoints
+              // which cost is no more expensive than snapping and results are
+              // much closer to the original geometry
+              removeRepeatedPoints: false // this requires postgis >=2.2
           }
 
       },

config/environments/staging.js.example

@@ -157,6 +157,10 @@ var config = {
               // Returning the portion of a geometry falling within a rectangle
               // It will only work if snapToGrid is enabled
               clipByBox2d: false, // this requires postgis >=2.2 and geos >=3.5
+              // geometries will be simplified using ST_RemoveRepeatedPoints
+              // which cost is no more expensive than snapping and results are
+              // much closer to the original geometry
+              removeRepeatedPoints: false // this requires postgis >=2.2
           }
 
       },

config/environments/test.js.example

@@ -156,7 +156,11 @@ var config = {
               // SQL queries will be wrapped with ST_ClipByBox2D
               // Returning the portion of a geometry falling within a rectangle
               // It will only work if snapToGrid is enabled
-              clipByBox2d: false // this requires postgis >=2.2 and geos >=3.5
+              clipByBox2d: false, // this requires postgis >=2.2 and geos >=3.5
+              // geometries will be simplified using ST_RemoveRepeatedPoints
+              // which cost is no more expensive than snapping and results are
+              // much closer to the original geometry
+              removeRepeatedPoints: false // this requires postgis >=2.2
           }
       },
       http: {