Move message_composer_test.js to message_composer test directory
Add test for getCharacterCount
Add message composer test fixture html file
Move message composer test files to comply with convention
Fix message composer test JS
Remove document ready checks in message composer and testing artifacts + comments
Refactor messageComposerUtils into an anonymous function
Call messageComposerUtils.init at page load
Add test for messageComposerUtils.getText
Add test for messageComposerUtils.updateCharacter
Call messageComposer.init on parent element to avoid repeated calls when a new instance is created
Merge branch 'CORE-1104' of github.com:frontlinesms/frontlinesms2 into CORE-1104