New features:

• #713 expose globals in bpdb debugging.
  Thanks to toejough.

Fixes:

• Fix file locking on Windows.
• Exit gracefully if config file fails to be loaded due to encoding errors.
• #744: Fix newline handling.
  Thanks to Attila Szöllősi.
• #731: Fix exit code.
  Thanks to benkrig.
• #767: Fix crash when matching certain lines in history.

Support for Python 3.3 has been dropped.