improved code quality, few bug fixes

lib/version.sh

@@ -1,3 +1,4 @@
+#!/bin/bash
 # ------------------------------------------------------------------------------
 # Version determination function
 # This file is part of the init.sh project
@@ -37,7 +38,7 @@ get_os_version()
 	    unset maj min
 	fi
 
-	# Return values on stdout
+	# Return values on stdout (awk used to retreave primary codename when using testing or unstable)
 	echo ${ID,,} ${VERSION_ID} $(echo ${VERSION_CODENAME,,} | awk '{print $1}')