Update to HSQLDB driver

Remove DWR
Remove native SVG tables
Add new REST services for persistence.

wise-webapp/src/test/sql/mysql/drop-schemas.sql

@@ -1,5 +1,4 @@
 DROP TABLE TAG;
-DROP TABLE MINDMAP_NATIVE;
 DROP TABLE MINDMAP_COLABORATOR;
 DROP TABLE MINDMAP_HISTORY;
 DROP TABLE MINDMAP;