Convert control statement bodies to block.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/beanutils/trunk@1632170 13f79535-47bb-0310-9956-ffa450edef68
Add final modifier to method parameters.
Add final modifier to local variables.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/beanutils/trunk@1632171 13f79535-47bb-0310-9956-ffa450edef68