[50967929] View mode is lost when re-ordering or paginating

We don't need to use ajax for view mode.

Signed-off-by: Henry Chen <hchen@vmware.com>
Merge branch 'master' of https://github.com/vmw-tmpst/heroapp-LetsHire into interviewers

Signed-off-by: Henry Chen <hchen@vmware.com>

Conflicts:
	app/views/candidates/_candidates_index.html.slim
[50967929] view mode is lost after pagination/ordering

We don't need to use ajax for 'view mode' switch. In such a way,
the url can be remembered and applied for pagination/ordering.

Signed-off-by: Henry Chen <hchen@vmware.com>
fix some mis-matched display text
Signed-off-by: Henry Chen <hchen@vmware.com>
adjust spec accordingly

We now cannot support the query for 'candidates_without_assessment' so
right now comment out its test case.

Signed-off-by: Henry Chen <hchen@vmware.com>
Merge pull request #241 from Henry-CF/viewmode

Don't use ajax for 'view-mode' switch