Fixed lib/AskFM/Question.pm

	modified:   lib/AskFM/Question.pm
Question.pm now return 1 when loaded, fixing import of the module.
Improved lib/AskFM/User.pm

	modified:   lib/AskFM/User.pm

User.pm re-uses code from Client.pm in order to perform ask(<...>)
function, removing duplicated code and now supporting anonymous
and as-user question posting.
Implemented lib/AskFM/Client.pm -- most of functionalities implemented

	modified:   lib/AskFM/Client.pm

In short:
 - Improved SYNOPSIS documentation
 - Implemented "ask" function
 - Fixed "my_questions" function to use actual data gathered from
   the Internet instead of using the old test data file.
 - "logout" function implemented
 - "answer" function implemented
 - "EXAMPLES" section of documentation written