RO start_build incorporating GERRIT_REFSPEC and GIT_COMMIT

Change-Id: Iea8491a005c525c5f37c847006e9b54a3b7ba564
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/jenkins/RO/start_build b/jenkins/RO/start_build
index 37cdbdf..7ae8d24 100755
--- a/jenkins/RO/start_build
+++ b/jenkins/RO/start_build
@@ -38,9 +38,8 @@
 
 if [ $# -gt 0 ]; then
         INFO "Code to compile: gerrit refspec '$1', commit-id: '$2'"
-	FATAL "Testing"
-	#git fetch origin $1 || FATAL "git fetch origin '$1' didn't work"
-	#git checkout -f $2 || FATAL "git checkout -f '$2' didn't work"
+	git fetch origin $1 || FATAL "git fetch origin '$1' didn't work"
+	git checkout -f $2 || FATAL "git checkout -f '$2' didn't work"
 else
         INFO "Code to compile: master"
 	git checkout master
@@ -48,10 +47,6 @@
 
 INFO "starting build"
 
-### for start_build
-### put your commands here to
-### build, test and produce coverage reports
-
 rm *.pyc
 python -m py_compile *.py
 RC=$?