[WIP] Start to make timing information to handlers...

- Haven't yet actually tried to use it to reduce false
  positives/negatives in modifier alias handler.
Updates to scratch.clj
Merge branch 'master' of github.com:candera/khordr

Conflicts:
	scratch.clj
Updates to match move to multimethod for platform initialization.
Update to release versions of Windows interception library.
Add support for filters.
Support ability to set log level in config file.
Merge branch 'master' into timing

Conflicts:
        src/clj/khordr.clj
Add sketch of tray icon support.
Add failing tests for desired behavior.
Add an activation threshold to modifier alias handler
Make typethough threshold for modifier alias configurable.
Merge branch 'master' into repeat-modifier-aliasing

Conflicts:
        test/khordr/test/handler/modifier_alias.clj