Adding a script to set the environment variables for groovyc.

diff --git a/lib/setenv.sh b/lib/setenv.sh
new file mode 100755 (executable)
index 0000000..29c2bdd
--- /dev/null
+++ b/lib/setenv.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+export GROOVY_HOME=$1/groovy-2.5.8/
+export PATH=$GROOVY_HOME/bin:$PATH