Work around to handle the PHP-native stream wrappers.
Allow breadcrumbs to reliably be generated multiple times.
Add content model dependant call of hook_islandora_object_view_alter().
Revert "Work around to handle the PHP-native stream wrappers."

This reverts commit 54401f71e0d736b02e38dd8ad03c5d6bf9f58690.
Revert back to iTQL query for breadcrumbs.
Fixes for Travis... Oops.
Fix where the context failed to get passed.
Flesh out inline function documentation.
Merge pull request #306 from adam-vessey/7.x

Allow breadcrumb code to be called multiple times.