Merge pull request #7 from pbugnion/master

REL: Added release notes for v0.2.
REL: Starting work on v0.2.1.
BUG: Fixed bug setting random seed with numpy 1.9.0.

Setting the random seed in MCMISER was broken with numpy 1.9.0 (the
unittests failed). This is now fixed.
DOC: Added release notes for v0.2.1.