* exposes some state-change/error events in the Editor API
* catches more possible errors and handles them
(e.g. staying cool on temporary disconnection to server, but warning about it)
* improves selection by mouse
* fixes selected paragraph style not being set to all selected paragraphs
* fixes leaking of some helper attributes into saved ODT files
* 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
Noticable changes:
* focus returns to canvas after usage of zoom tool or paragraph style dialog
* Default paragraph style is listed with normal paragraph styles
* Cursor is not hidden, but shown non-blinking if tool is used
