Basic error checks for I/O
Added simple EQSim file writing to QuakeLib IO
Temporarily removed fcff code
Fix for implicit 4th vertex in elements
VC editor support for EQSim output
Removed friction law methods
Removed unused functions
Changed rupture code
Improved model generation script
Fix up rupture code
Removed unused code
Changed filename

Since text output will also be supported, this is the first step to
allowing both HDF5 and text output