Release tasks using release-specific virtual environments

Refine the development process and define the procedure for
releasing new versions.

src/py/.gitignore

@@ -1,2 +1 @@
 *.pyc
-dev/

src/py/Makefile

@@ -1,9 +1,10 @@
 # Install the package locally for development
 install:
-	virtualenv --system-site-packages dev
-	./dev/bin/pip install -I ./crankshaft
-	./dev/bin/pip install -I nose
+	virtualenv --system-site-packages ../../envs/dev
+	# source ../../envs/dev/bin/activate
+	../../envs/dev/bin/pip install -I ./crankshaft
+	../../envs/dev/bin/pip install -I nose
 
 # Test develpment install
-testinstalled:
-	./dev/bin/nosetests crankshaft/test/
+test:
+	../../envs/dev/bin/nosetests crankshaft/test/

src/py/crankshaft/setup.py

@@ -10,7 +10,7 @@ from setuptools import setup, find_packages
 setup(
     name='crankshaft',
 
-    version='0.0.1',
+    version='0.0.0',
 
     description='CartoDB Spatial Analysis Python Library',