Merge pull request #67 from briandrawert/coral_model

Fixed cylinder demo and removed model.vol
Merge pull request #74 from briandrawert/coral_model

fix toVTK()
degugging in progress
Merge branch 'develop' of https://github.com/ahellander/pyurdme into develop
Fixed error in dependency graph, should fix #75
Removed some degub prntouts
Added a test for failing circle mesh
Fixed simple_diffusion2 and ioperformace
Merge pull request #16 from ahellander/develop

Develop