Fixing handlebars template cache bug

The template cache currently caches by filename alone, which breaks when
you organize templates according to subdirectory. This adds the relative
path to the filename as part of the template cache key.
Update the java perf app.
Fix perf app.
Inline method to reduce stack frame.
Javadoc.
Update New Relic agent version.
update Spring Loaded repository url and version to most recent
Merge pull request #454 from lhotari/spring-loaded-dep-recent

update Spring Loaded repository url and version to most recent
upgrade to latest hikaricp version, which turns out to be java8 dependant
:) - Java 7 is dead !
Merge pull request #457 from smaldini/patch-2

:) - Java 7 is dead !
Lambda
Improve error handling so that unhandled errors are at least logged and there is some protection for exception cycles.
Test fixes.
Don't let Netty auto release the request buffer.

Closes #460.
Fixes #459
closes 419. Add ratpack-base gradle plugin that simply adds extension.
Merge branch 'master' of git://github.com/mlusetti/ratpack
Add Massimo Lusetti as a contributor.
Merge branch 'ratpack-gradle-base' of git://github.com/johnrengelman/ratpack