Fix color resetting in plugins

Remove defaulting in highlighters, which isn't needed, and was setting
the wrong thing anyway.  Also a little new hightlighter
also use munged RPC name in URL - as that's what the stock javescript does (as far as I can tell - it's stopped returning this munged version for now)
for #552
Merge pull request #553 from vita10gy/highlighter_fix

Fix color resetting in plugins
* added advanced menu...most users are not interested in the debug pane
* moved debug pane to advanced menu
* added clear-cookie button to advanced menu (fix for #551)
bumped version number, removed not used dimens entry
Status persistence of Layer Chooser: Change to save status on 'overlayadd' and 'overlayremove' events. Instead of checking .overlay everytime a layer is added or removed.
Merge pull request #555 from Xelio/patch-event-overlay-add-remove

Status persistence of Layer Chooser: Change to save status on 'overlayadd' and 'overlayremove' events. Instead of checking .overlay everytime a layer is added or removed.
revert plugin name change - it breaks automatic updates
(from #553)
bump version number. it seemed to have been increased and reverted at some point (possibly just dev/test/local builds?) breaking auto updates
Merge branch 'master' into effective