* Removed unnecessary -Dcom.sun.management.jmxremote system property (was needed only on JDK 1.7.0_25 which apparently has a bug on Mac)

* Improve the test and the comments (thanks to Vincent)

* Small improvements (thanks to Vincent and Thomas)

Update tests.

XWIKI-11370: On Firefox, 'Escape' key closes the Jump To Page dialog even if the suggestions list was opened

XWIKI-11369: Jump to Page throws javascript exceptions if the target is not a full wiki page name, i.e. Space.Page

- Added propagateEventKeyCodes option where key codes can be listed so their events will be propagated.

XWIKI-11366: Extended modalPopup.js to support specifying keyboard shortcut options for the defined actions
- Accepting keyboard shortcut 'options' map, for all the registered shortcuts of a defined action.

* Better fix to handle the asynchronous nature of requirejs.

* Fix for Android too.

* Fix for Android too.

- set locale from language to the context before rendering
  the mailocntent from the templatre
- scrap comment that does not make sense (as no "setLanguage" happens)

[misc] Explicitely cleaning the cache is not really required. Those are all signleton components so it will be cleaned anyway when disposing the cache manager itself

* Set the default language when creating users.
* Improve the French analyzer

XWIKI-11357: It's possible to loose external images files from an office preview when several preview of the same attachment are done with different parameters

* Add some values in the Flamingo Theme object to have a nice preview in the space webhome

[Misc] Add dep on the default implementation so that simply depending on the UI is enough to get everything

- The welcome gadget now needs to display the Main.Welcome document in order for the sheet to be applied
- Added translation key

* Remove BR from empty LIs that are ment to be separators.