Bump version to 2.20

Bump version to 2.19

Bump version to 2.18

Bump version to 2.17

2.16

Make it easier to do different types of asan.

Fix issue Andersbakken#1040

Bump version to 2.14.

Fix issue Andersbakken#1035 and issue Andersbakken#1035.

Oops

Bump rct.