[UI] don't fail the hosts show page if the host has no OS assigned.

fixes #1751 - ReportCommon#status fails on ruby 1.9

fixes #1726 Template editor doesn't seem to work with IE

dont enforce host domain validations on non managed hosts

[UI] - convert all bulk operations into buttons

Update first-run splash page with a note about Smart Proxies, fixes #1721

adds missing EC2 propetries view

use file reader for the config template file upload.

fixed dropdown location for action button and bookmark.

[UI] - added missing label classes