added base models
added book store template
modified base models and default layouts
added base controllers and views
modified book model/view for added table column
modified books module and default layout
modified books module and template
updated .gitignore to ignore specific foloders
modified .gitignore to ignore specific folders
Merge branch 'master' of https://github.com/habahaba/safaribooks
added star rating and modified book module
created javascript and helper for book module
modified core files for book module
modified book module
added date picker
modified book module