1. Fix the charactor encoding problem of DWR when running with Internet Explorer;
2. Use environment variables in ContextApp, to make switch among different databases easily;
3. Delete the embeded hsqldb server(for test, can use - jdbc:hsqldb:file:../build/temp/TestHsqlDB);
4. Make the datasource and hibernate properties configuration support System properties(for SchemaUpdate AND OpenXava DataSourceProvider);