Before 0.6.0:
* New tools (one or more could be implemented as plugins):
	- delocalized bonds,
	- week interactions (e.g. H-bonds),
	- curved arrows,
	- alignement tools for reactions and other groupings,
	- direct export of a molecule to Ghemical,
	- lone electrons pairs and radicals.
* Use of contextual menus for objects
* Enhance Bonobo server
* Add abbreviations in fragments
* Enhance fragments
* Some code cleaning
* Update documentation

Later:
* Add preferences
* Zooming
* Scriptability (?)
* Enhance selection
* Change cursor according to situation
* SVG and EPS export
* Update documentation
* Remove all bugs ;-)
