[Task]: POST GET -- Ready for test

[Davi Leal]

Now, we are using POST only at:
  * Qualifications, JobOffer forms, etc.
  * The Back button of the error page "required fields are empty".
  * New and delete JobOffer.

Let me know if we should use GET in same of the above cases.



To do: https://savannah.nongnu.org/task/index.php?6461

When that task be finished, I think the only use of JavaScript will be at the 
Qualifications and JobOffer forms and the candidate-application state change.


P.S.: I have not committed it yet.

Davi