docker copy: always create target directory

docker_build_copy

@@ -10,6 +10,8 @@
 project_home=$(cd $here && cd .. && echo $PWD)
 odoo_modules="$(python -B -c "import ConfigParser ; c = ConfigParser.SafeConfigParser() ; c.read('${project_home}/setup.cfg') ; print (c.has_option('odoo_scripts', 'modules') and c.get('odoo_scripts', 'modules') or '')")"
 
+mkdir -p $project_home/odoo_modules
+
 # Copy modules when specified
 if [[ -n "$odoo_modules" ]];
 then
@@ -13,7 +15,6 @@
 # Copy modules when specified
 if [[ -n "$odoo_modules" ]];
 then
-    mkdir -p $project_home/odoo_modules
     rsync --delete -C --exclude='.hg*' --links --exclude='*.pyc' -r --times $(eval "echo $odoo_modules") $project_home/odoo_modules
 fi