BibClassify: case insensitive taxonomy

* Fixes a bug where the look-up of ontology names from the
  taxonomies were forced to lower case.

Signed-off-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
57: D202 No blank lines allowed *after* function docstring, found 1
120: D401 First line should be imperative: 'Output', not 'Outputs'
120: D209 Put multi-line docstring closing quotes on separate line
120: D202 No blank lines allowed *after* function docstring, found 1
120: D400 First line should end with '.', not 'e'
120: D205 Blank line missing between one-line summary and description
144: D202 No blank lines allowed *after* function docstring, found 1
144: D400 First line should end with '.', not 's'
204: D400 First line should end with '.', not 't'
204: D205 Blank line missing between one-line summary and description
217: D401 First line should be imperative: 'Return', not 'Returns'
217: D400 First line should end with '.', not 'f'
217: D205 Blank line missing between one-line summary and description
232: D400 First line should end with '.', not 't'
232: D205 Blank line missing between one-line summary and description
247: D401 First line should be imperative: 'Find', not 'Finds'
247: D400 First line should end with '.', not 'r'
247: D205 Blank line missing between one-line summary and description
272: D401 First line should be imperative: 'Return', not 'Returns'
272: D400 First line should end with '.', not 'g'
272: D205 Blank line missing between one-line summary and description
350: D209 Put multi-line docstring closing quotes on separate line
350: D202 No blank lines allowed *after* function docstring, found 1
470: D400 First line should end with '.', not '}'
470: D205 Blank line missing between one-line summary and description
482: D400 First line should end with '.', not '}'
482: D205 Blank line missing between one-line summary and description
530: D209 Put multi-line docstring closing quotes on separate line
606: D209 Put multi-line docstring closing quotes on separate line
606: D202 No blank lines allowed *after* function docstring, found 1
614: D209 Put multi-line docstring closing quotes on separate line
667: D209 Put multi-line docstring closing quotes on separate line
683: D103 Docstring missing
693: D103 Docstring missing