get a list of gems when filling out the gemfile
add the database gem
use the GemfileGem object for more entries
refactor Gemfile template
fix the class name
add jbuilder web-console and sdoc to the GemEntry list
fix variable name
add an option to skip jbuilder
Merge remote-tracking branch 'origin/master'

* origin/master:
  Removal of javascript related gems when creating an app

Conflicts:
	railties/lib/rails/generators/app_base.rb