relax SVN archive

Fixes for the new test_monte_carlo_sims() N-state model system test.

The protons have a PCS but no RDC, and the sim data checks have been loosened.

Bug fix for the Monte Carlo simulation data generation for the N-state model.

The create_mc_data() method was always skipping RDC and PCS data due to an incorrect check for the
presence of that data.

Created the N-state model test_monte_carlo_sims() system test for checking MC sims with alignment data.

Created some synthetic data for testing out the Monte Carlo simulations of RDC and PCS tensor fitting.

Updates for Python 3.0 using the Python 2to3 script.

The command used was:
2to3 -w \
-f buffer \
-f idioms \
-f set_literal \
-f ws_comma \
-x except \
-x import \
-x imports \
-x long \
-x numliterals \
-x xrange \
relax .

All files in the extern package were excluded to allow these to track upstream development in the
future.

Fix for a bug introduced in the last revision (r14810).

The RDC errors are now properly converted.

Added the ability to specify J+D verses J+2D measured RDCs.

This is to make it easier for the user so that data conversion by dividing by 2 is not needed prior
to loading into relax.

Bug fix for the logging and teeing command line options.

These are now class variables!

Bug fix for missing RDC back-calculated data (rdc_bc).

If a sequence is read from a PDB file, but the N-H bond vector cannot be extracted due to a missing
proton, the alignment tensor fit to RDC data (specifically the Monte Carlo simulations) would fail.

Modified the new test_rdc_tensor() N-state model system test to not produce files.