fixes #226 - Return OutofSync, Error Host list from Dashboard controller as YAML

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

fixes #231 - find_each LocalJumpError (no block given)

added titles to hosts show page actions

fixes #160 - Last Report Date is client date, not date report was received

fixes #225 - migration fails - undefined local variable or method release_name

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)....