fixes #35 - Allow hostgroup nesting for puppet classes and parameters

fixes #987 - migration fails when using postgres after #820

Fixes #820 - Intel Solaris support

Signed-off-by: Paul Kelly <paul.ian.kelly@googlemail.com>

errors bookmark was wrong. fixes #886

ensures migration can actually run... refs #836

added search bookmarks, fixes #836

• adds sub navigations under main menu items, each sub navigation is a bookmark.
• adds visual improvements to main menu

  app/controllers/bookmarks_controller.rb | 74 ++++++++
  app/helpers/application_helper.rb | 2 +-...

fixes #52 - remove unused fields from puppetclasses table

fixes #259 - Ability to search Hosts by Parameters

fixes #774 - Migration may fail if upgrading from a 0.1-5 and older foreman

fixes #495 - only value field needs to be text, reverting