Fix JSHint warnings and improve code style
Refactor commands and events facility functions
Change the name of the REPL script
Add Andrey Sidorov as a contributor
Move update-protocol.sh in the Makefile
Fix REPL script termination

Close Chrome connection on exit.
Add a test case for the alternate event binding syntax
Fix code style
Fix test typo
Add the alternate event binding syntax to the README
Add missing semicolons to examples on the README
Add the REPL interface to the README
Add types reference to the 'chrome' object
Add Contributors section to the README