Reset flash_array when viewing screen off off vm summary screen.

Reset flash_array so flash message is not displayed when clicking on links such as Snapshots/Genealogy/Container/Operating System etc from summary screen after perfomring some actions like "Edit Tags".

https://bugzilla.redhat.com/show_bug.cgi?id=1146249
https://bugzilla.redhat.com/show_bug.cgi?id=1102658
Convert schedule_form partials to haml
Remove old CC based test stuff from Rakefile.
Removing coverage.rake since it's not used.

It was added in 2007, and we've never used it...
Delete all the things.
Rename evm_test_*.rake to test_*.rake
Reorganize tests from spec_evm.rake and evm_test.rake.
Move test:setup_* tasks into their respective namespaces.
Remove unused spec:rcov rake task in lib.
Remove hacks in lib test tasks
Remove unused stuff from Rakefiles
Reorganize tests from rspec.rake and evm_test.rake.

Also prefer rake/testtask over rake/runtest.
Change lib rspec tasks to not expect rspec to be installed
Move test:setup_lib task to test:lib:setup
Ignore log files generated from running test:miq_disk
Rename brakeman.rake to test_brakeman.rake
Change brakeman tasks to be more consistent with other CI tasks.
Minor rubocop style cleanup in test rake tasks
Move validate_user to a separate service
Merge pull request #673 from martinpovolny/user_validation

Move validate_user to a separate service
Fixed a typo in the exception block in update_fields method.

https://bugzilla.redhat.com/show_bug.cgi?id=1148518
https://bugzilla.redhat.com/show_bug.cgi?id=1148519