feat(navbar), refactor(navbar): script params now editable in the top navbar

* used currentScriptInfoService to share script data across different modules
* refactor(navbar): moved navbar markup to a separate partial
fix(script-edit-ui): adding slots fix
fix(ngGrid), fix(script-revisions), fix(scripts-list), fix(script-manager): Problem with ngGrid when serving whole app on Django server

Closes #27
chore(ngGrid): Using bower-managed ngGrid, not CDN version

Mentioned in #27