Fix the Bug#4237 [ https://sourceforge.net/p/phpmyadmin/bugs/4237/ ]

Now with these changes, sensitive information like token and others do not go with outgoing HTTP Requests.

Also the [Bug Report](https://sourceforge.net/p/phpmyadmin/bugs/4237/) only mentioned URLs associated with SQL queries, but as I found out, token was present in almost all outgoing links (like Wiki, Documentation, etc..). That problem is also solved in these changes.

Travis-CI build fails because, it is comparing the new results with some old result which has token in all its outgoing URLs, and so string comparisons fails on those URLs. See [build log](https://travis-ci.org/dhananjay92/phpmyadmin/jobs/18263846#L270).