Updating zshrc for OS X; fixed Agnoster theme
Removing unnecessary submodules
Adding Python scripts path
Revert "Updating aliases for OS X"

This reverts commit ef19a40079a535f78f0325c9bce8f0fdd4bda2f2.
Renaming file
Renaming unix aliases file
Merge branch 'unix' into master

Conflicts:
	.gitmodules
	.shell_aliases
Merge branch 'osx'

Conflicts:
	.osx_aliases