0.15.0

• images and webfonts tasks implemented via grunt-contrib-copy
• semver version guard updated to handle all acceptable package.json version specifiers
• set ruby test suite to v1.9.3 and pull debugger out of Gemfile
• added changeOrigin feature to api proxy (@tonyarkles)
• removal of config options that are already defaults (jst, jshint, and npmignore)
• switched to grunt-contrib-watch and then switched back 😄