Implementation for WinBIAP OPACs, a bunch of small things

I implemented WinBIAP OPACs (only search), starting with these three:
http://webopac.winbiap.de/unterfoehring/index.aspx
http://gersthofen.webopac.winbiap.net/gersthofen/
http://webopac.winbiap.de/eschwege/index.aspx
I used the following public domain Base64 implementation instead of the one integrated in Android to make the Unit tests work: http://iharder.sourceforge.net/current/java/base64/
I also created a Python script which will make adding all the WinBIAP libraries from the list easier.

Other random things:
- Added Library Wetzlar (Bibliotheca)
- Maybe fixed strange account bug in Adis where the reservation table has one column less
- Added HTTPS URL and right charset for Wiesbaden HLB
Could you add some more documentation comments here, explaining about the meaning of the parameters as far as you know the meaning? I doubt any of us will understand this two years from now.