fixes #235 - Small refactoring of the media handling for operating system families: * Use URI class for any URI related operations * Added substitution for $version, $major and $minor in media path * Force use of http(s)|ftp|nfs URI schema: NFS shares have now to be entered in URI form: nfs://server/path/.../ instead of server:/path/.../

• added better module detection to properly show the module list
• Add sorting to module class lists
• Add description to each link

added titles to hosts show page actions

fixes #224 - edit multiple fails on operating system

fixes #222 - add search and sort functionality to dashboard host lists

fixes #220 - show all used puppet classes when using storeconfigs

• Remove active scaffold from hosts controller.
• changed default host graphs from one day for up to one week
• added dynamic dropdown boxes for host creation / edit page (e.g. for puppet classes, operating systems etc)....

fix closing tag in report template: s/capmion/caption/

fixes #200 - Remove activescaffold from the puppet groups page

fixes #219 - debian should not be the default operatingsystem family