Updated benzene-toluene example for updated command-line YANK.
Updated p-xylene example for new command-line YANK.
Refined READMEs for p-xylene example.
Updated NaCl example, but doesn't quite work yet.
Added bezene-toluene in explicit solvent example.
Fixed
Fixed bug in setting up default explicit solvent protocols.
Minor cleanup of examples.
Removed unused travis/ directory.
Fixed incorrect dependency in conda recipe.
Removed incorrectly included temporary file.
Trimmed down travis testing requirements a bit.
Corrected some errors in travis scripts.
Changed version of docopt needed in setup.py
Updates to .travis.yml to help diagnose issues.
Added docopt to requirements
Corrected an error in last commit.
Added neglected --yes to .travis.yml
Fixed issues with repex nosetests.
Revised CLI nose tests. Updated some doctests.