anchor.diff:  Also we don't recommend it, a plugin could implement the https://github.com/killbill/killbill-plugin-api/blob/master/payment/src/main/java/org/killbill/billing/payment/plugin/api/PaymentPluginApi.java[PaymentPluginApi] and the https://github.com/killbill/killbill-plugin-api/blob/master/control/src/main/java/org/killbill/billing/control/plugin/api/PaymentControlPluginApi.java[PaymentControlPluginApi], and that would qualify it as a 'payment and payment control plugin'.
   
   TODO: Provide example of what can be achieved with plugins (and examples)
  -
   
   == Where to Start?
   
  
positive.code: gem install jbundler
  ----
  
  ==== Build
  
  Follow these steps, making sure each one is successful before moving on to the next one:
  
  
negative.code:     |_ adyen-plugin-0.3.2.jar
  ```
  
  === Ruby Plugins
  
  For `ruby` plugins, deploying by hand consists in building the package (`tar.gz`) and untaring that package at the right place: For example, the `stripe` plugin with a version `3.0.2` would show up as the following:
  
  