Added theme generator
Corrected folder name for theme subgenerator
Added mkdir for themes in generator and cleaned away dev comments
Added tests for theme generator
Appened theme generator section into README
added a more detailed theme generator section in Readme
Removing unwanted files
fix for redundant folder
Merge branch 'master' of https://github.com/spohner/generator-esri-appbuilder-js
Merge pull request #19 from spohner/master

Finally got around to testing this. Works perfect. Long over due merge.

Nice work @spohner!