relax SVN archive

Re-inserted the error_analysis() function in the auto class of relaxation dispersion.

This function only checks if the error analysis has not been be performed before, and then decides to call
the user function spectrum.error_analysis_per_field().

The implementation can be tested with.
relax -d -s Relax_disp.test_estimate_r2eff_err_auto

In the auto_analysis.relax_disp(), used the new userfunction spectrum.error_analysis_per_field() to calculate the peak intensity errors.

For the pipe_control.spectrum.error_analysis_per_field(), added additional print out of subset IDs used for error analysis.

Adding the new user function spectrum.error_analysis_per_field(), to quickly perform an spectrum error analysis.

Added the function pipe_control.error_analysis_per_field(), as an automatic way of submitting subset ids per field for error analysis.

Removing the automatic function for error analysis per field in the auto_analysis of relax_disp.

This function is moved into pipe_control/spectrum.py.

Changed the text of the http://www.nmr-relax.com/search.html webpage.

Small HTML fix for the http://www.nmr-relax.com/search.html webpage.

Created a new page http://www.nmr-relax.com/search.html to search through all of the relax webpages.

This uses a custom Google search which will search http://www.nmr-relax.com,
http://wiki.nmr-relax.com, the mailing list archives, etc.

Fix for the Google gadget for searching the relax mailing lists.

This is for the page http://www.nmr-relax.com/communication.html, and it allows the page to pass the
W3C validator (http://validator.w3.org/).