added custom strategy
allow string replacement in thumbnailing command
support multiple resources
Allow specifing of imagemagic command on a per task basis
removed console.loging
debugging staging
knox was not handling alternative regions properly.
removed commented out line.
Merge pull request #28 from bcoe/region-fix

Downloading from S3 using knox did not handle alternative regions
Added strict stratergy. This will destroy the aspect ratio but will make sure
that the image is resized to the specified dimensions. Just like fill but
doesn't zoom in
Merge pull request #32 from bcoe/strict

Merge of siddhant3s's strict resize option.
added new resize strategy.
removed console.log
Merge branch 'master' into manual-tasks

* master:
  added new resize strategy.
  Added strict stratergy. This will destroy the aspect ratio but will make sure that the image is resized to the specified dimensions. Just like fill but doesn't zoom in
  removed commented out line.
  knox was not handling alternative regions properly.

Conflicts:
	package.json
added sprintf-js back into package.js
convert single path to array to keep Thumbnailer.execute api the same
implemented http callback notification for when job is complete
added test for client.
added in tests, refactored somewhat.
updated README.md, referencing the custom strategy.