Sync with webodf 1875ef27bc220bc49dc6092e7de9b5e184c2e855

* adds support for direct text styling:
  + bold
  + italic
  + underline
  + strikethrough,
  + font
  + fontsize
* fixes broken OT on selections vs. other editing operations
* performance improvements with big documents
Merge pull request #130 from kossebau/webodf-sync-15.11.13

Sync with webodf 1875ef27bc220bc49dc6092e7de9b5e184c2e855