formatting.
Ratpack now requires Java 7.
Rename “workerThreads” to “mainThreads”.
Introduce a mechanism for executing blocking operations (closes #114).
debugging heroku deployment issue.
debugging heroku deployment issue.
Cleanup after heroku debugging.
#104 - implementation of handlebars support finished, still need to add the docs
Merge remote-tracking branch 'origin/master'

Conflicts:
	ratpack-test-support/src/main/groovy/org/ratpackframework/test/DefaultRatpackSpec.groovy
Add some changes that were omitted in the previous commit.
minor generic fix.
whitespace
try to get dyno working again
restore env stuff to heroku
Workaround for bug with Compass image-url that causes "file not found" warnings

Fixes #111
Ignore class files created in root of ratpack-manual, probably by SpringLoaded
Merge remote-tracking branch 'origin/master'
Run the site with the latest Netty snapshot.
remove some dodgy printlns.
Do not allow for test classes to end with Test (closes #115).