Added a function to get the branch we are building.

(cherry picked from commit 1e4881bf43)

extras/build_vars.sh

@@ -8,3 +8,11 @@ BUILD=$(grep 'my $pandora_build =' $CODEHOME/pandora_server/lib/PandoraFMS/Confi
 X86_64=`uname -m | grep x86_64`
 CONSOLEHOME=$CODEHOME/pandora_console
 CONSOLEHOME_ENT=$CODEHOME_ENT/pandora_console
+
+function get_current_branch {
+	cd "$CODEHOME" || return ""
+	BRANCH=`git branch 2>/dev/null | grep \* | awk '{print $2}'`
+	cd -
+	return $BRANCH
+}
+