Prevent bumping old Threads

Description
This Hack helps to prevent Users from (accidently) bumping old Threads by forcing them to tick a checkbox
when replying to a Thread older than x days.

Details
1 Product XML (3 Plugins, 6 Phrases, 1 Setting)
1 Image
2 Template Edits

History
1.0.0
Initial Version

1.0.1
Fixed a bad phrase (solves -> serves, which it should have always been)
Fixed a typo in the instructions

vBulletin Campatibility Note
This Modification is compatible with vBulletin 3.5, 3.6, 3.7 and 3.8