Changes to help with implementation of derivative hook.
Carry through local constant change.
Coding standards.
Merge pull request #27 from adam-vessey/7.x-constants

Fix constants for coder.
Merge pull request #26 from adam-vessey/7.x-derivatives

Changes to help with implementation of derivative hook.
dont pass in 0 as request handler. When the handler is set to "let solr decide", the value of islandora_solr_request_handler is 0
Merge branch '7.x' of git://github.com/Islandora/islandora_ocr into 7.x
Merge pull request #28 from nhart/7.x

drupal var islandora_solr_request_handler is 0