Use batch fetching for getting World instances
Add gitignore file for grails project
update STS/eclipse IDE files
Optimize MySQL JDBC connection properties
Make it easier to profile the app with Yourkit Java Profiler (yjp)
update dependencies
use statement cache in Tomcat JDBC pool
- Mysql JDBC driver causes a lot of SQLExceptions internally which cause a lot of overhead
Get rid of unnecessary SQL exceptions thrown in Mysql jdbc driver
- enabling holdResultsOpenOverStatementClose helps
- see com.mysql.jdbc.PreparedStatement:2265 (5.1.27 version source)