JBIDE-15002 : add quotes to groovy command to handle whitespace

Signed-off-by: Fred Bricon <fbricon@gmail.com>
JBIDE-15001 : state that groovy 2.1.x is required to run the offline script

Signed-off-by: Fred Bricon <fbricon@gmail.com>
JBIDE-14991 : better handle warning wrapping

Signed-off-by: Fred Bricon <fbricon@gmail.com>
Fixed really stupid extractKey() signature

Signed-off-by: Fred Bricon <fbricon@gmail.com>