Corrected some Help typos
Only clear find status string for non-folder search

I find myself often closing folder search results and later re-opening (via ⇧⌘F) which would previously have the status string cleared, yet the results still showing.

Status should probably be stored together with the folder search results, so when toggling between document and folder search, the status string would follow as well.
Move already open find/HTML windows to active space

This is only when invoking the “order front” action and the window is already showing on another space.
Add expiration date to TextMate

The user will get daily reminders when the application is more than a month old, and it will stop working when it’s two months old.

Normally not a fan of expiring software but a significant amount of the requests sent to api.textmate.org (posting crash reports, updating bundles) are from versions more than a month old. Adding to that, the expiration date serves as a fallback for potentially broken software update checking.
Handle failure to create folding dots image

Based on crash reports this appears to happen for some users, though only reason I can imagine is if the images are not found in the application bundle (which would happen if the application is moved after launch, but that normally cause many things to fail).