Lint+ 3.1: Fixes, file filters & more tracking

Hey everyone!

Lint+ received a few new fixes and features (along with a price increase for the premium version from $1 to $3)! (Anyone who got it for $1 should continue to be able to get the file, but if I'm wrong, please do reach out to me!)

• Added the file progress tracker to wordcounter+

Below each file's statistics, you can individually show your progress since the last time Lint was run:

NEW!  +108 words and +9 lines since last time!

• Introduced wordcounter_hidden_files and wordcounter_hidden_files_except, which give you greater control over which files you want to focus on
• Fixed a bug where setting wordcounter_last_version to "save" would issue a warning that an invalid value was used
• Fixed minor mistakes when displaying negative numbers ([-,200] can no longer happen)

Thank you for your support, and I hope these little numbers will continue to be helpful! :D