relax SVN archive

Converted all parts of the hybrid module to the 1.3 line design.

This includes the addition of many new, very simple methods and the translation of old code.

Removed a test that disallowed model selection between different pipe types.

Converted the duplicate_data() method to the 1.3 line design.

Added a check for the pipe type to hybridise().

Added the hybrid data pipe to the list of allowable data pipes.

Converted the hybridise() method to the 1.3 line design.

Created the compare_sequence() for checking if 2 sequences are the same.

Renamed the hybridise() pipes keyword to pipe_list.

Added the pipe keyword to all the sequence counting functions.

Added 3 new RelaxErrors for sequence matching.