Merge pull request #39 from malcolmw/master

show_stalta Makefile and manpage
At Jennifer's request, make all references to the sts2.5 to sts2_5 for consistency in naming.
Add sts4_b data for response and calibration functions
clean up and correct setra responses.
Add trap for dangerous parameter combination and 3c example pf file
Merge branch 'dev/fix_extract_events'
Make sure magnitude data from external catalogues is transcribed into loon file. Add non-interactive batch mode [-b] option.
Merge branch 'dev/db2loon'