Sync with webodf 379ba3bfff4a7d736109f48c8ab72ea649a77918

* enables initial support for integrating into OC-Docs translation system
* fixes broken paragraphstyle dialog on 2nd and later editor start with the same OC-App page-life-cycle
* showing selections of other users, not just the cursor
* lots of small fixes with cursor/selection

For hooking up the translation systems there is now a call in the global (yes, ideally would be namespaced with "webodf.", that will come soon, but that needs some more work) runtime object, by which for now a lookup-method can be registered that will then be used inside the webodf code.
The method needs to have the signature "function translate(!string):!string", getting in the engineer/default english term and returning the proper translation. Simple, but works for now (tm).

Question is how to hook-up with transiflex given that method, but that discussion needs to be continued in the proper issue #14