refactored pagepart generator
mode askForBundleName to common place
move pagepart section selection to common class
move fields selection to common location
better check for reserved field names used in parent class
make askForSections more dynamic and re-usable
moved the generate entity logic to a common place
move the admin type creating to a common place
added page generator
removed test code
removed test code
bugfixes page generator
bugfixes page generator
Merge branch 'master' into add_page_generator

* master:
  added missing single column homepage template
  added single column homepage as option in default site generator
updated the documentation
removed space in beginning of file
removed the unnecessary while loops around the askAndValidate functions
use symfony finder component for getting file lists from the filesystem
Merge pull request #100 from Kunstmaan/add_page_generator

Add page generator + refactor pagepart generator