Better protect license file
Browser provider is optional
Move clear all menu
Update README.md
Prevent opening the database more than once (support info)
Always reset dangerous methods
Show on demand dialog for all users

Refs #1261
Only change category restriction for a function when it was deny
Clear category also if category selected
Updated read me
Make setLockScreenShown optional
Only warn for out of memory (support info)
Default to not restricted for dangerous methods

Closes #1263
Sqlite doesn't support nested transations
Backup database and create new database if database corrupt
Updated changelog
Updated changelog
Fix on demand category
Updated changelog
Ask to submit restrictions in on demand dialog