Updated to PETSc version 3.5.2.1 and tidy to code
Bug fixed DIM stuff
Updated dim method.
Tidied up timing calls and print statements.
Backup frequency and choice of whether to outpu...
Merged in DIM updates from 17 June and 11 Augus...
Backup files, u, v, w and phi now all written t...
Added in HDF5 routines to src/io.F90, not curre...