python/v0.3.0

• Added support for new keywords options (#416): extrakeywords,
  extrakeywordsconstant, extrakeywordsdeclaration,
  extrakeywordsnamespace, extrakeywordspseudo, extrakeywordsreserved,
  extrakeywordstype.

• Refactored version handling in cmdline.py to avoid unnecessary imports.

• Improved .errlog.minted files. Improved layout and added traceback
  information for the origin in the LaTeX document. Fixed a bug that could
  cause .errlog.minted files to be deleted when they should be kept.
  .errlog.minted files now contain all error data from a compile,
  regardless of highlightmode setting. Previously, only the data from the
  last error was kept under some circumstances when highlightmode was not
  immediate.