Merge pull request #2 from richtr/master

Fix premature firing of DOMContentLoaded in Ready.js
Minor fix to remove popup context console warning for Speed Dial API
Merge branch 'master' of github.com:operasoftware/operaextensions.js
Update build scripts
Update build tools (add a banner to build files)
Update build scripts
Remove 'STRICT' ECMAScript 5 handling in minification build process
Update build scripts