Do 0.95.1 released

Written for Do by Chris Halse Rogers on 2014-01-23

The Do 0.95 release accidentally picked up a dependency on Mono 3.2 after some changes in Mono.Cairo.

The 0.95.1 release re-adds Mono < 3.2 support, using the new APIs only on Mono.Cairo ≥ 3.2