Added copyWith documentation for @Immutable
GROOVY-6268: precisions around GStrings, their hashCode, the usage of closure expressions
Merge pull request #282 from timyates/documentation

Added copyWith documentation for @Immutable
GROOVY-6268: a bit more coverage on numbers
GROOVY-6268: resulting type of math binary operations
GROOVY-6268: Specially for Cédric :)
Merge pull request #291 from bura/documentation

GROOVY-6268: Specially for Cédric :)
(escaping accents)
GROOVY-6268: covering the division operator
GROOVY-6268: Specially for Cédric II :)

- Setting utf-8 for all .adoc files.
Merge pull request #292 from bura/documentation

GROOVY-6268: Specially for Cédric II :)
GROOVY-6268: Template engines chapter added.
GROOVY-6268: Code formatting for TemplateEnginesTest.
GROOVY-6268: covering the power operator
GROOVY-6268: minor language fix
GROOVY-6268: minor updates to the boolean section
GROOVY-6268: minor reformatting
GROOVY-6268: minor tweak to use the same callout cue icons as in the code snippets
Merge pull request #293 from bura/documentation

GROOVY-6268: Template engines chapter added.
Add JAVA_HOME and Java version to build lifecycle, for CI integration purposes