Adding in_cmd to run a command in the given virtualenv.
Documenting in and inall commands in README.
Adding a flag to the new command to prevent immediately activating newly created environment.
Merge branch 'newflag'

Adding a flag to the new command to prevent activating a new
environment.
Changed indentation from tab to spaces
Merge https://github.com/michaelxor/invewrapper into incommand

Conflicts:
	invewrapper/invewrapper.py
More whitespace fixes
Merge branch 'incommand'

Conflicts:
	invewrapper/invewrapper.py