Merge pull request #54 from tomvantilburg/master

a.o. Important bugfix for d3layer, handling projection of non-point geometries
add architecture diagram
Merge pull request #55 from tomvantilburg/master

merge from geodan
Merge pull request #56 from tomvantilburg/master

Time for merge from Tom...
Merge pull request #57 from tomvantilburg/master

Sharing working now per item
Merge pull request #60 from tomvantilburg/master

Merge for progideon
Merge pull request #61 from stvno/master

fix for the disappearing styles
Merge pull request #14 from Geodan/master

merge from tom