Fix requirements for project.

Fix gitignore to reflect a more Python specific project.

.gitignore

@@ -1,8 +1,7 @@
 bin
 .DS_Store
 .idea
-.gradle
-.eclipse
-.settings
-*.iml
-classes
+
+*.pyc
+docs/_build
+

requirements.txt

@@ -1,5 +1,4 @@
-# Task management
-invoke
+# Requirements for basic operation of the game.
 
 # User interface
 PySide==1.2.2

requirements/development.txt

@@ -1,4 +1,15 @@
 # Requirements for developing the justCheckers app
+
+# Task management
+invoke>=0.7.0
+
+# Sphinx and Pygments
 Sphinx>=1.2.2
+# TODO Remove after the next release of releases.
+-e git+https://github.com/bitprophet/releases@master#egg=releases
+
+# Testing
+mock>=1.0.1
 nose>=1.3.0
-flake8
+coverage>=3.6,<3.7
+flake8>=2.1.0