Remove AutoPlugin triggers from plugins.

With the current triggers, all plugins are enabled by enabling any other
(since all end up triggering on UniversalPlugin). After removing the
triggers, we can still include all plugins via JavaAppPackaging.
Update scripted tests to enable required plugin.
Create xxxDeployPlugin which provides deploy settings for xxxPlugin

Deployment/publishing settings should be provided by a plugin which
depends on the appropriate parent plugin. Replaces deploymentSettings
which requires all plugins to be configured.
Merge pull request #389 from fiadliel/feature/less_autoplugin_triggers

Remove AutoPlugin triggers from plugins.