Refactor quick_FASTA_reader (shorter like this)
Fix import to work on Python 2 and 3
Fix an old style list.sort()
Refactor this use of a sorted list
This should probably raise the NexusError (otherwise catch & reraise is silly)
PEP8 whitespace tidying in Nexus.py
Don't need to deep copy dicts, nor plain strings.

We do still need to avoid letting Bio.Nexus edit the
global alphabet instances however... but the deepcopy
is not the best solution for that.
Avoid deepcopy in Nexus (while not editing global IUPAC alphabet instances)
Fix silly typo about version numbers in NEWS file
Talk about next() in the NEWS file
fixed typo @ Bio.SeqIO.FastaIO.FastaWriter
Remove deprecation warning in semi-private class (triggered by unit tests)
Simply Nexus error handling

This try/except seems to be unnecessary and overly inclusive.
D
Fix tiny typo in Bio.bgzf docstring
Style change for sorting lists in SCOP
Bundling copy of MIT licenced 'six' v1.4.1 by Benjamin Peterson
Use six.move.urllib to reduce 2to3 changes
Don't need the 2to3 urllib fixer anymore.

$ 2to3 --no-diffs -n -w -f urllib BioSQL Tests Doc Scripts
RefactoringTool: No files need to be modified.
Replace 'raw_input' with Python3 style 'input' via Bio._six.moves
Don't need the 2to3 raw_input fixer anymore.

$ 2to3 --no-diffs -n -w -f raw_input Bio BioSQL Tests Doc Scripts
RefactoringTool: No files need to be modified.