relax SVN archive

Removed the 2 from CH2 in the atom list in the element determining function.

This is in response to Vitaly Vostrikov's <vvostri att gmail dott com> message at Message-id:
<AANLkTimYA4H7=WbMwzgpxaTJ6_nArKu=ed9VNdXCSuDB@...>,
https://mail.gna.org/public/relax-users/2010-12/msg00013.html.

The script user function is now executed in a thread from the GUI so that the GUI remains responsive.

All the user function dialogs are now modal.

The molecule user function dialogs are now modal.

Added support for CCPN Analysis 2.1 peak lists (exported in Sparky format).

This is a fix for bug #17341 (https://gna.org/bugs/index.php?17341) reported by Madeleine Strickland
<M dott Strickland att bristol dot ac dot uk>.

Bug fix for the CCPN Analysis peak list system test.

Decreased the number of MC sims to speed up the CCPN Analysis peak list reading system test.

Implemented and activated the CCPN Analysis 2.1 peak list reading system test.

This is to catch bug #17341 (https://gna.org/bugs/index.php?17341).

The grace executable file is now set to '' in the CCPN analysis peak list system test.

Fix for bug #17344 (https://gna.org/bugs/index.php?17344), the broken grace.view() user function.

This has been broken since January, and is released in relax 1.3.5, but no one seems to have
noticed :S