added db2 jdbc driver

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/commons@182461 a5903396-d722-0410-b921-86c7d4935375
added a postgres jdbc driver

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/commons@182462 a5903396-d722-0410-b921-86c7d4935375
added jtds-1.3.1.jar driver

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/commons@182464 a5903396-d722-0410-b921-86c7d4935375
added db2 license driver

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/commons@182465 a5903396-d722-0410-b921-86c7d4935375
added mysql-connector-java-5.1.18-bin.jar driver

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/commons@182466 a5903396-d722-0410-b921-86c7d4935375