First commit
sucessfull serial implementation
First commit of ensight.py
Ensight files working (almost)
Ensight files working (almost)  2
Expensive stable timestep calculation
fixed time step, progress bar
conditional print to stdout
Sorry implementation of insert crack
Second crack detection algorithm
Working crack insert
Bug fixes in ensight.py
Implement masked arrays
Masked array implementation works, but give incorrect results
Commit before branch switch
Commit before branch change
Working masked arrays, much faster code.
Final commit on branch, before merge
Merge branch 'masked'

Conflicts:
	PD.py
Working crack insert with masked arrays