Fixed text on create cluster dialog

* In CreateCluster the action from cluster templates was used
* In jobs SelectHadoopPluginAction the template from cluster templates
  was used
* SelectPlugin and SelectPluginAction in jobs were never used.

Change-Id: I3affd88b49b36ec13e1a77f720bdad1da076fd7b
Closes-Bug:  bug #1336266
Co-Authored-By: Andrew Lazarev <alazarev@mirantis.com>
restyle pencil icon for table inline edit

You can see this in Admin > Projects table.
Small bug after the Bootstrap 3 merge.

Change-Id: I81b136a99e9e8584d1bb8121aef23006d0fd20c8
Closes-Bug: #1349600
Fixed error message for recoverable exceptions

Issue was introduced by https://review.openstack.org/#/c/76354/
In case of recovarable exceptions message is None and exc_value
need to be used. But after encoding.force_unicode(message) message
becomes u'None' and all checks on "if message" pass. This result
in popup screen with 'None' text instead of problem description.

Change-Id: I7bc2dd02f97ba2bb10a7fadd2c1b86b011eb5967
Closes-Bug: #1350110
Make source fields required for 'Create Volume' form

Raise an error message when 'Volume Source' field has been
changed to 'Image', 'Volume' or 'Snapshot' but no actual
image/volume/snapshot has been selected.

Closes-Bug: #1348760

Change-Id: I2d864c78ba2f5bce55f6fe77075ea6dd848f0f6a
Delete Stacks button doesn't work

Clicking on causes a frozen grey overlay.
It should have the class 'btn-danger' and remove the 'ajax-modal' class.

Change-Id: I892f7cc550cb1c332fa37fd08022b4d252918619
Closes-Bug: #1350112
Merge "Fixed error message for recoverable exceptions"
Merge "Fixed text on create cluster dialog"
Merge "Delete Stacks button doesn't work"
Merge "Make source fields required for 'Create Volume' form"
Merge "restyle pencil icon for table inline edit"