Bumping up mod-lang-groovy version

Signed-off-by: Horacio Gonzalez <horacio.gonzalez@gmail.com>
updated Logger.java

Signed-off-by: Bartek Zdanowski <bartek.zdanowski@gmail.com>
Update langs.properties to latest mod-lang-clojure
Merge pull request #818 from zdanek/master

Fix javadocs in Logger.java
Merge pull request #819 from tobias/patch-2

Update langs.properties to latest mod-lang-clojure
Merge pull request #817 from LostInBrittany/mod-groovy-2.3RC3

Bumping up mod-lang-groovy version
mod-lang-groovy 2.1.0-final released

Signed-off-by: Horacio Gonzalez <horacio.gonzalez@gmail.com>