Model page and test cases for TimeProfile
Added validation test cases
Merge pull request #1329 from akarol/timeprofile

Model page and test cases for TimeProfile
Inaccessible datastores now ignored for stats

CFME doesn't care about inaccessible datastores in VMware so now neither
do we.
Merge pull request #1363 from psav/inacc_datastores

Inaccessible datastores now ignored for stats
Fixed on_details issue
Merge pull request #1364 from psav/on_details_fix

Fixed on_details issue