Updated error-message for chai methods `calledWith` and `calledWithExactly` to show useful info.
Updated install script to wrap the output for better integration with browsers a
nd require.
- Updated the browser-test file to always include the code, since the browser.js is no longer compatible with browserify.
- Updated karma and manual tests to run again.
Bumped to v. 0.10.0 and updated readme a bit.