Handler options and ValueError fix

Hook handler now supports handler options (files, --host, --port). ValueError is propagated where it can.

Exceptions are caught

Exceptions in hook files are caught and passed to stderr where it is picked up by Dredd. This should help to solve issues like #32.

Hook files loaded in sorted order

Hook files are now loaded in alphabetical order.

See #26 for more details.

Importing local modules in hooks

Fixes issue #17 by adding the directory with hooks file into sys.path

Composable decorators

Improvements

• the decorators can be now combined together, one function can server for different hooks
• no need to do sys.stdout.flush() anymore it is added auto-magically

Improved error handling

Improved error handling and logging.

v0.0.2

Initial beta release on pypi