Update ratpack-groovy plugin id for perf apps
Move the fonts to the end of the file to see if that improves first render.
Add Gradle getting started examples.
Merge branch 'master' of github.com:ratpack/ratpack

Conflicts:
	ratpack-manual/src/test/groovy/ratpack/manual/snippets/executer/JavaSnippetExecuter.groovy
Update the site readme.
Add promise.blockingMap() to make it easier to do transforms that require blocking.
Add support for Multicast Publisher to Streams
improve Spring java example to prevent initializing for each request
use Spring Boot 1.1.6.RELEASE version
Fix HttpClientSmokeSpec's use of a promise
Make MulticastPublisher reject new subscriptions when stream has signalled complete or error.

Javadoc updates
Another test case.
Use Gradle 2.1.
Merge pull request #439 from lhotari/spring-module-improve-1

Fix ratpack.spring.Spring javadoc's java example, upgrade to Spring Boot 1.1.6.RELEASE