add php 5.2 and pgsql to travis
add php 5.2 and pgsql to travis

dakota/crud,bravo-kernel/crud,Spriz/crud,ojengwa/crud,johanmeiring/crud,davidyell/crud,FriendsOfCake/crud-json-api,pwerken/cakephp-crud,deizel/crud,simkimsia/crud,FriendsOfCake/crud,ankr/crud,bcrowe/crud