Update to sbt 0.13.5 and add way more configuration options.

* Configure target report language
* Filter only desired configurations
* Select a "primary" license for each artifact based on list
* Attach title information to the report.
* Configure new types of license categories.
Add ability to attach notes to modules in license report.
Add a few more hooks to license report.

* Override license info per-module (if inaccurate).
* Attach notes to each module.
Add the ability to create more than one report.

* Name the report using the title.
* Create a default report configuration with settings directly in sbt
* Allow users to add addiitonal report profiles
* Add filtering of which licenses to display in a report.
Adding scripted tests.
Bumped readme with new config options and version.
Merge pull request #3 from sbt/wip/auto-plugin-and-configurable-reports

Update to auto-plugin and enhane configuration