Merge pull request #440 from nap/master

PyCharm IDE project specific files

Global/PyCharm.gitignore

+# PyCharm
+# http://www.jetbrains.com/pycharm/webhelp/project.html
+.idea
+.iml

Global/VirtualEnv.gitignore

+# Virtualenv
+# http://iamzed.com/2009/05/07/a-primer-on-virtualenv/
+.Python
+[Bb]in
+[Ii]nclude
+[Ll]ib
+[Ss]cripts