Changes

This is a major feature and bugfix release. New features include the [http://www.nmr-relax.com/manual/statistics_aic.html statistics.aic] and [http://www.nmr-relax.com/manual/statistics_model.html statistics.model] user functions, plotting API advancements, huge speed ups for the assembly of atomic coordinates from a large number of structures, the sorting of sequence data in the internal structural object for better structural consistency, conversion of the [http://www.nmr-relax.com/manual/structure_mean.html structure.mean user function] to the new pipe/model/molecule/atom_id design, and improvements to the [http://www.nmr-relax.com/manual/rdc_copy.html rdc.copy] and [http://www.nmr-relax.com/manual/pcs_copy.html pcs.copy] user functions. Bugs fixed include the incorrect pre-scanning of old scripts identifying the [http://www.nmr-relax.com/manual/minimise_calculate.html minimise.calculate user function] as the old minimise user function, Python 3 fixes, and the failure in reading CSV files in the [http://www.nmr-relax.com/manual/sequence_read.html sequence.read user function]. Many more features and bugfixes are listed below.