GitLab

 * implement server reboot/shutdown/start/destroy actions
 * fix ordering on imports (servers.py, actions.py)
 * actions.py: change type to reboot_type (reserverd word)
 * change vm.start_action to backend.start_action where needed
(there is no vm.start_action any more)
 * create server action function in synnefo.js

Refs #311

VirtualMachine models has attribute backendjobstatus instead of
_backendjobstatus

This commit fixes some breakage caused by the recent merge of
the logic-refactoring branch, mainly related to db/db_controller.py.

The main reason was the different value of import path, fixed by
making sure all imports are rooted in synnefo.

All db and API tests run properly.

Conflicts:
	api/handlers.py
	api/tests.py

  * Update VirtualMachine reference in all modules
  * Updated fixtures accordingly (and tests)

Conflicts:
	README

  * All functionality is achieved through the logic layer

In list view, pending actions are cleared
if you change your selections before pressing
Cancel or Confirm.

This is linked to #209.

This fix relates to #209 and includes:
 - On hover, actions turn black and are underlined.
 - On click, actions turn to orange.