#514 Removing TimeUnit from api and replace with Duration
#505 Remove GroovyUnitTest class
#505 Remove GroovyUnitTest class and UnitTest
Split manual.js into more files and apply grunt-js.

src/assets/js files are thematically splited.
grunt-js plugin is used in order to combine js files into one all.js.
grunt-js plugin is used in order to minify combined js file into
all.min.js.
IMPORTANT: because grunt-js has incompatible reference to google's
guava, so minifyjs.gradle build file is executed as separate GruntBuild
file.

HTML files for manual as well as Javadoc API reference to all.min.js
file.
Split manual.js into more files and apply grunt-js.

src/assets/js files are thematically splited.
grunt-js plugin is used in order to combine js files into one all.js.
grunt-js plugin is used in order to minify combined js file into
all.min.js.
IMPORTANT: because grunt-js has incompatible reference to google's
guava, so minifyjs.gradle build file is executed as separate GruntBuild
file.

HTML files for manual as well as Javadoc API reference to all.min.js
file.
Remove grunt-js reference from ratpack-manual build.
Merge branch 'master' of https://github.com/zedar/ratpack
Remove grunt-js reference from ratpack-manual.
Clean code.
Merge pull request #530 from gsaqui/issue-505-remove-unittest-and-groovyunittest

Remove UnitTest and GroovyUnitTest.

Closes #505.
Merge pull request #534 from zedar/master

Split manual.js into seperate JS files. Combine and minify JS with grunt-js plugin
Remove need for nested build by fiddling with some classpaths.
Add John Engelman as team member.
Replace LaunchConfig with ServerConfig and root Registry implementation.