Major bugfix

Todays release is containing a major bugfix with the name of the constructor, which stops the bot from logging in.
Also the getArticle-Function was rewritte to use the contents of the editpage instead of the exportpage as before, to minimze and simplify the code a bit.
A new function was added, fetchPage, which allows to fetch the pages as they are shown to the user. It also allows to fetch all kinds of special-pages and to define own GET- and POST-Variables.