gaussian water
Merge branch 'water1' of github.com:mpharrigan/mixtape into water1

Conflicts:
	Mixtape/featurizer.py
Doc formatting
Contributor
Complete documentation
SOL
SOL
SOL

Conflicts:
	Mixtape/commands/atomindices.py
Merge pull request #127 from mpharrigan/water1

[WIP] Water
Some updates to tICa
Added RMSD featurizer
Pulled constant code out of if then statement.
Fixed docstring in RMSD featurizer
Merge pull request #130 from kyleabeauchamp/rmsd

[WIP] Added RMSD featurizer
Merge pull request #129 from kyleabeauchamp/tica_project

Some minor updates to tICA
merge in latest master
Merge branch 'commands' of github.com:rmcgibbo/mixtape into commands