Manually ported r4617 from the 1.2 line.
This allows one to use no PDB file with the full_analysis.py script.
The command used was: svn merge -r4616:4617 svn+ssh://semor@.../svn/relax/1.2
Authored by: semor 2008-01-11
Parent: [r4647]
Child: [r4649]
