messages: require.js messages

* Refactors the messages/add template to use require.js.

* Loads jQuery UI modules individually.

* Fixes the jquery timepicker add-on shim.

* Moves bootstrap.js back into jquery bundle.

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>
base: bundles documentation

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>