Merge pull request #103 from ahellander/develop

Develop
Removed unnessesary tests from getstate in the Result object to speed up pickling. Removed unused imports from the testsuite
Removed the model refernce in the result object
put model back into result object
work in progres
Refactored so that URDMEMesh can be pickled. Pickling of mesh removed from URDMEModel.
test script to check threading, gil
Fixed include errors in outputwriter.h
Make sure Instant uses subprocess
Merge pull request #104 from ahellander/molnsoptim

Molnsoptim