Doug's patch for fixing bug #10022 (https://gna.org/bugs/?10022).
The patch by Douglas Kojetin (https://gna.org/users/dkojetin) labelled as 'patch2' and attached to
the bug report has been applied without modification.
This change fixes the convergence test in the 'full_analysis.py' script which fails when one residue
has the model None associated with it. These situations are now caught and skipped.
