fixed file extension letter case bug, compilation

bump version number
Added case for only op post
File size limit same as MAX_FILE_SIZE in form #1
Removed hard coded max file size #1
Added missing wordfilters #12
Return to legacy getNumberOfNewPosts
Merge pull request #13 from UncleBillyUSA/release-1.4.0

File size limit same as MAX_FILE_SIZE in form #1
Merge branch 'dev' into release-1.4.0

Conflicts:
	kurahenPremium.user.js
Merge pull request #14 from Kurahen-Premium/release-1.4.0

Pre-release 1.4.0