MantisTouch adds Custom Fields support

The MantisHub team has just released MantisTouch v1.3.0 with support for custom fields. The lack of custom-field support had prevented some MantisBT instances that relied on custom fields from using MantisTouch.

This is now available to all MantisHub users with the appropriate plans, as well as users who have purchased MantisTouch as a standalone offering.