Write access needs the PHP_KDB_USERNAME and PHP_KDB_PASSWORD variables set
* Implement JSON API for reading/writing the KDB relations
* Submitting patchpanel config now updates the database relations:
see http://kdb-test.kaas.kit.edu/kdb-admin.fcgi/relations/
* Write access needs the `PHP_KDB_USERNAME` and `PHP_KDB_PASSWORD` variables set
Thomas Thümmler
see http://kdb-test.kaas.kit.edu/kdb-admin.fcgi/relations/
PHP_KDB_USERNAMEandPHP_KDB_PASSWORDvariables set