relax SVN archive

The "from __future__ import absolute_import" statement is used in lib.io and lib.warnings.

This is to avoid module name clashes with the standard Python modules.

Deletion of a debugging printout statement.

Renamed the relax_warnings module to lib.warnings.

This is part of the relax library redesign.

Rearrangements for the unit tests of the old relax_io module (now lib.io).

Renamed the relax_io module to lib.io.

This is part of the relax library redesign.

Renamed the relax_string module to lib.text.string.

This is part of the relax library redesign.

Renamed the relax_errors module to lib.errors.

This is part of the relax library redesign.

Deletion of the frame_order_testing branch - this code has now been manually merged into trunk.

Added the script used to recover the frame_order_testing branch to the devel_scripts directory.

This might be useful at some point in the future.

Final synchronisation of all the frame_order_testing branch files back to trunk for the merger.

The manual merger of the frame_order_testing branch did not bring over all changes for some reason.
Maybe this was due to bad conflict resolution. The changes not merged back were found with the
command:

$ diff -qr . ../../relax-trunk | grep -v ".svn"

This was run from the checked out branch. All the differing files were then copied over manually.