Only parse form at most once per pac4j request (#317).
Build with Gradle 1.12.
Fix type param hiding.
Rename ModuleRegistry to BindingsSpec and make it not implement Registry.

Also renamed `modules {}` to `bindings {}` and some other methods.

Closes #323.
Add BindingsSpecAction.
Merge pull request #320 from roguePanda/issue-318-renderer-search

use registry search for renderer lookups
Some improvements to registry searching for rendering operations.

Closes #318.
Simplify the just in time injector implementation.
Implement caching of registry searches (closes #319).