Merge pull request #8 from Windower/4.1

4.1
Merge pull request #9 from Windower/4.1

4.1
Merge pull request #10 from Windower/4.1

4.1
Merge pull request #11 from Windower/4.1

4.1
Libs: Various updates
Various addons: Incorporated API changes
Merge pull request #500 from z16/4.1

Various changes to libs and addons.