Update to the latest stable Esprima 1.2.
Merge pull request #198 from ariya/update-esprima

Update to the latest stable Esprima 1.2.
[skip ci] update changelog, up version
Fix #202
Upgrade deps
Handle sigint exits

Useful when you have a long running process
that you want to test coverage of using an integration
test.
Merge pull request #195 from samccone/sjs/handle-sigint

handle sigint exits
downgrade jshint to 2.4.x since npm install causes problem for v0.8
Update version, changelog, add @samccone as contributor
[skip ci] Actually up version