changes the logging_handler to raise exceptions

this enables us to log and then raise exceptions.
Merge branch 'changes_threequel_to_throw_exceptions' of github.com:blankenshipz/threequel into blankenshipz-changes_threequel_to_throw_exceptions

* 'changes_threequel_to_throw_exceptions' of github.com:blankenshipz/threequel:
  changes the logging_handler to raise exceptions

Conflicts:
	lib/threequel/logging_handler.rb
t push origin masterMerge branch 'blankenshipz-changes_threequel_to_throw_exceptions'

* blankenshipz-changes_threequel_to_throw_exceptions:
  changes the logging_handler to raise exceptions