Merge pull request #339 from danielpeter/devel

adds test subdirectory tests/tomography/
changes output format of seismogram names to **network**.**station**.., also for adjoint source filenames
renames reference solutions to new seismogram file format **network**.**station**...
updates grep statements
renames adjoint seismogram names (displacement and strain) to format /NT.S000001.** instead of /S000001.NT.**
updates seis_process scripts
updates manual