updated sinatra from 1.3.2 to 1.4.2 to fix the CORS request always return a 403 bug. link here https://github.com/sinatra/sinatra/issues/518
Added configurable port for postsql and mysql
Merge pull request #889 from 0x1a0ran/master

Bug fix: cross-origin XHR with "Origin" or "Referrer" header set always return 403.