Changes to dashboard statistics. Fixes #1617

fixes #1610 - exdception in the ui when editing a deleted vm.

UI fixed error in provisioning template, edit page.

fixes #1603 - Login Screen improvments

UI - more explicit button description for the add child node.

fixes #1595: show success on test connection

Added css class "btn_success" to the test connection button when the connection
is successful.

This still leaves behind a problem with ec2 (and probably rhev and vmware) where
testing the connection resets the selected region (or, datacenter for rhev and...

Fixes #1596 Add back button of console page.

[UI] minor changes to ldap page.

- LDAP attributes mappings are not related to on the fly creation

added ace code editor to the provisioning template edit page.

added info text to the assosiation tab of the provisioning templates page.

fix certificates and autosign list views