support for the `alloy generate styles` command
xml2tss 0.3; generate style [name]; generate styles --all
get rid of "styles" command, put all functionality in "style"
adjust style tempate or unit tests
minor code formatting fixes
Merge branch 'master' into pr/165
Merge pull request #172 from appcelerator/pr/165

[ALOY-737] Integrate xml2tss into style generation