relax SVN archive

Better handling of temporary file and directory removal in the relax test suite.

The new test_suite.clean_up.deletion() function has been created from the recent method of the same
name. This is used by the tearDown() method of the system, unit, and GUI tests. It should prevent
rare MS Windows errors from appearing due to the OS not releasing a temporary file after a close()
call.

Changed the links for the Python downloads to the Python 2.7.5 release webpage.

This is for the webpage http://www.nmr-relax.com/download.html.

Updated the Python download links from 2.7.3 to 2.7.5.

This is for the webpage http://www.nmr-relax.com/download.html.

Updated the minimum Python version from 2.3 to 2.5 in the user manual.

Updated the Python requirement from 2.3 to 2.5 on the webpage http://www.nmr-relax.com/download.html.

An attempt at better handling MS Windows not releasing the file handle on time in the test suite.

The system and unit tests tearDown() method should now be resilient to the strange MS Windows
behaviour of not releasing the relax state files. The tearDown() method should now complete even
when this error occurs. A delay of 3 seconds has been added when the WindowsError occurs to give
the OS some time before attempting to delete the file again. If this fails, then the file deletion
operation is skipped.

Started to create the Relax_disp.test_r1rho_off_res_fixed_time_tp02 system test.

Updated the TP02 R1rho model conditions in the table in the manual.

This cannot be fast exchange.

Updated the M61 R1rho model conditions in the table in the user manual.

Modified the synthetic data for the TP02 dispersion model.

The data is more closely mimics that from the paper, and should now be in the slow exchange regime.