Update cfme_data yaml template - log_depot > log_db_depot

Update log collection testing code to work with new yaml
Add configuration/settings/schedules page model

Add NFS and SMB scheduled database backup tests
Update that should enable an extended handling of the events:

* host_analysis_request
* host_analysis_complete
* vm_reset_req
* vm_reset
* vm_suspend_req
* vm_suspend
* vm_settings_change
* vm_template_create_complete
* vm_retired
* vm_snapshot_create_complete
* vm_snapshot_create_request
* vm_snapshot_create_started
* vm_guest_reboot
* vm_guest_reboot_req
* vm_guest_shutdown
* vm_guest_shutdown_req
* vm_create_complete
* vm_delete_req
* vm_clone_start
* vm_clone_complete
* vm_standby_guest
* vm_standby_guest_req
Added vm_suspend[_req] event registration for power tests
Added register_event to host analysis test
Forgot to disable queries on disabled event tester
Changed the spinner locator to be less specific; also prettified the _wait_for_results_refresh()
flake8 cleanup
Remove_Action_Chain
Handle errors when grabbing the browser screenshot

pytest internal errors were being caused in cases where either the
browser was closed when we tried to grab the screenshot, or otherwise
it was invalid (UnexpectedAlertException, for example). pytest internal
errors are bad, so this prevents them from occurring.
tweaks to migration script

switched to optparse, appliance runs py2.6, not 2.7 where argparse is
tweaked options parms
changed reboot option to evmstart
general flake cleanup
change output log file locations
added reverting all user passwords to 'smartvm'
two script tweaks

change appliance_logs filename artifact
chmod +x ntp_clock_set.py
Merge pull request #343 from dajohnso/script_tweaks

two script tweaks
Merge pull request #344 from seandst/browsershot-errors

Handle errors when grabbing the browser screenshot
Reorganised docs and amended some content
Start of new documentation
Test start/finished log messages, minor log/path tweaks
Merge pull request #342 from dajohnso/migration_tweaks

tweaks to migration script
Merge pull request #341 from psav/docs_update

Reorganised docs and amended some content
Merge pull request #331 from mfalesni/qwertz

Event extension

Epic.