Empty acceptance tests for issue #8
Added text area to log messages
Issue-Id: #8
Check the value of the name attribute of the message input field.
Added test: it "appends nothing when message is empty"
Issue-Id: #8
Added test: it "appends message to the log when send button is clicked"
Issue-Id: #8
Change expression to find unit test files to *Test.coffee
package.json: Run mocha unit tests with the TDD style.
New class SinglePageChat and tests to register an event handler
Issue-Id: #8