Merge pull request #138 from mwarusz/master

3D pressure solver, rearranging tests
Merge pull request #139 from mwarusz/master

fixing CMakeLists
fixing paths in shallow-water tests
Merge pull request #140 from slayoo/master

fixing paths in shallow-water tests
adding rigid boundary conditions in 2d
adding rigid bc to cr pressure solver in 2d
adding rigid bc to mr pressure solver in 2d
Merge remote-tracking branch 'upstream/master'