Added multiple-streams-in-parallel version of hitfinder
Merge branch 'testing' of github.com:antonbarty/cheetah into testing
Added more traps for thread lockup - need to add a timeout wherever waiting for all threads to exit
Fiducial not being read meant files were overwriting each other, causing HDF5 library errors.  Added a fix using frame number as the fiducial if not read from XTC.  Could happen to the timestamp as well.