Fixed error in es5-kill script
Split unexpected into multiple files

Updated makefile to build production
Ensure that all source files are linted
Use make to run tests
Run jshint from node_modules
Made a version of unexpected that requires es5 compatibility
Build unexpected for production
2.1.0
Use equal to test equality for 'to have properties'
2.1.1
Build unexpected for production
2.1.2
Rewrote indexOf shim to work in es4 environments
Build unexpected for production
2.1.3
Merge branch 'master' into gh-pages