fixes #2809 - send host subject as xpi opt to prevent ssl connect errors

Fixes #2826: only run set_code() on submit if the config template editor is already in diff mode

refresh locales

Fixes #2780 - Enhance puppet classes assignment

Allows you to assign/unassign puppet classes to a host/hostgroup by
clicking on it's name. You can still use the small icon on particular
line.

refresh locales

fixes #2734 - wrong taxonomy scope on hostgroup and host form

fixes #2665 - search on click in dashboard pie chart

fixes #2656 error connecting to vsphere after upgrade to ruby 1.9.3

fixes #2646 Asset icon URLs are incorrect when under a different base URL

fixes #2583 - error message is now properly i18n-ed