Merge branch 'release/0.3.2' into develop
Removing remote execution through fabric.

Also --output is now the final pypi-style organized directory where
source packages and wheels are put, replacing the unclear --upload
option.
using click to parse command line
fixed glob expansion for moving packages to the output dir
added --output-index-url option
checking that requirements are not directories
bumped version
cache filenames no longer include the path of the source file, just the hash the hash of its contents
added an option to write merged frozen requirements directly to a file instead of stdout
added a flag to write separate requirements files
cosmetic changes
--cache renamed to --pip-cache
typo
printing proper name for filtered requirements
Merge branch 'release/0.4'