xF1 Add-on Staff Activity 1.6

Staff Activity v1.6 changes:

Updated Template Modification to use Regular Expression.

Staff Activity v1.5 changes:

Added link to sort by Thread View Count.

Staff Activity v1.4 changes:

Added Select Date Range and Select Member functions.

Staff Activity v1.3 changes:

Added Days selection to the Staff Activity and Options page.

Staff Activity v1.2 changes:

Improved Template Modification code.

Updated