Get rid of restricted param check for thumb, tile and square
Version bump to 1.2.3
Update actionpack
Allow width or height scaling of 512 pixels or less to be considered tiles
Version bump to 1.2.4
Change IiifTranslator into IiifImageServiceRequest
Legacy ImageServiceRequest works with method sig matches with

- IiifImageServiceRequest
ImageService refactored to use common @image_service_request
All specs pass with revamped #image_service helper
Make pry the new console
Use DruidTools when building stacks_file_path
Add helper methods to IiifImageServiceRequest used during authorization
Add auth-n/z to /iiif processing
Add tests for webauth/session mgmt for iii
Update actionpack
Set mime-type correctly for IIIF info responses
Point to latest djatoka gem on github for now
Update Gemfile after rebase with tile fixes
Merged conflicts from tile fix rebase