added menu files.
changed to mysql from sqlite
added menus models
added menu add option
finished menu edit
started menu_items
added form for menu items.
added menu_item
fix create menu item link
menu items admin form: show page and link fields depending on what type is choosen for menu item
Added Gemfile.lock
update therubyracer to fix https://github.com/cowboyd/therubyracer/issues/226
added pry to development group
added cms tags for menu
add identifier to menu, so it can be used in cms tags
Merge branch 'menus' of github.com:omegainteractive/rorpress into menus

* 'menus' of github.com:omegainteractive/rorpress:
  Added Gemfile.lock
added menu option in page and site
Merge branch 'menus' of https://github.com/omegainteractive/comfypress into menus
moved the migration files.
added seedbank