Updated the desel_spin() function to the new design.
Bug fix in desel_read() - skip missing spins.
The generic_fns.intensity.read() fn now uses RelaxNoSpinWarning.
Modifications to RelaxNoSpinWarning.
The desel_read() fn now uses RelaxNoSpinWarning.
Created the new warning RelaxNoSpinWarning.
Updated the desel_read() function to the new relax design.
Converted the desel_all() function to the new relax design.
Clean up of a ton of unused imports.
Wrote 2 unit tests for the boolean args of the select user functions.