Javascript clean up.

Earlier the div wasn't getting clicked properly.
Removed redundent toggle functions.
Leap forward in warnings.

Based on a new classification of exceptions done in previous check-ins, the warnings are updated
The number of warnings are same - 3:
Release notes still TODO and Release notes DONE but blank is as is.
Release notes nil is now replaced by Release notes INVALID
Amongst this, the trackers which doesn't have CF defined for them are not counted
- hence additional filter is been created.
The dashbaord itself can now be toggled to hide/show.

By default the DIV is actually visible, but if it is hurting your eyes - you can hide it.
The title on the DIV is changed from "Release notes for ..." to "Manage release notes ..."
Small beutifications as well.
Updated all Locales

FR is way out of date.