Bump to v0.8.16

Merge pull request mbj#734 from mbj/release/v0.8.15

Bump version to 0.8.15

Merge pull request mbj#720 from mbj/fix/bump-version

Bump version to 0.8.14

Merge pull request mbj#712 from mbj/fix/prepare-0.8.13-release

Add changelog for 0.8.13 and bump version

Merge pull request mbj#671 from mbj/release/mutant-0.8.12

Bump version to 0.8.12

Remove TODO files from gemspecs

* These files where removed from the repo since last release

Bump to v0.8.10

Merge pull request mbj#512 from mbj/feature/release-0.8.9

Release 0.8.9

Merge pull request mbj#485 from mbj/feature/rspec-3-4

Add support for rspec-3.4

Merge pull request mbj#469 from mbj/fix/eval-blacklist

Correctly exclude evaled code