Bumps sass version to 3.3.7 in Gemfile
Adds `ronn` to Gemfile
Updates Makefile to remove complexity for creating man file
Adds `preferGlobal` flag to package.json
Fixes `man` entry in package.json file so that the man page is present when installing this package
Merge branch 'feature/fix-manpage' into develop
Bumps version to 0.1.7
Merge branch 'release/0.1.7' into develop