- function isReopenable needed to check for topic
- getHelpTopics for inline edit needed to include name of disabled Topic if selected
- getHelpTopics for dashboard needed to include disabled/archived Topics

To avoid date format ambiguity the datepicker replaces entered date with a
standard 'ISO 8601' date format on form submission. The system however fails
to use datepicker's format on post-back, resulting in invalid date on
subsequent submit.

This pull request addresses the issue by making sure reflected date uses the
format datepicker expects.

'strtotime' uses local timezone without taking into consideration the user's
timezone. This pull requests simply makes sure user's entered timeframe
range is converted to db time before it's used in a query.

Which indicates permissions are not windowed by an object's department

Key permissions definition array
Move canned and faq permissions to their respective classes.

Allow for permissions to be registered dynamically. This will
allow for the ability for models and plugins to register permissions.