Bump version to 0.2.2
Bump version to 0.2.2

Change-Id: I32b970452809d31037ad15783d2f50e894e530ed

benjiii/pygerrit,gferon/pygerrit2,sonyxperiadev/pygerrit,dpursehouse/pygerrit,markon/pygerrit2,dpursehouse/pygerrit2,morucci/pygerrit