Fix and support for surveys of adcrun.ch

Fixed bc.vc-like links, the server returns a malformed JSON preventing
us (and the real page) from interpreting it. Example:
http://adcrun.ch/OgYLt
Support for surveys of adcrun.ch. Example by annlabv3:
http://adcrun.ch/8kLaS
Support for ilix.in

Example links:
Normal: - http://www.ilix.in/dZ9OC
- http://priva.us/dZ9OC
- http://www.urlink.at/dZ9OC
Password: http://ilix.in/Vew6w
Captcha: http://ilix.in/lQaJa
Refactor captcha script.
Use CRLF in header.
Merge remote-tracking branch 'devnoname120/adcrun.ch' into develop

close #495
close #498
Merge remote-tracking branch 'devnoname120/ilix.in' into develop

close #271
close #499
Tiny fix.
adli.pw

Domain name expired.

close #496
short.pk

Service not available.

close #501
Support for safeurl.eu

Example link: http://safeurl.eu/FP
Merge remote-tracking branch 'devnoname120/safeurl.eu' into develop

close #503
close #505
Revert "short.pk"

This reverts commit 217fd6d456768de391ffe6eb837baa128003350e.
short.pk

Remove short.pk only.

close #501
API rename: $.postAndGo -> $.openLinkByPost
Add API: $.searchScripts
Apply new API.
Support for apploadz.ru
Support for adwat.ch

Example link: http://adwat.ch/yNqgJ
Add context to $.searchScripts()

This allows to use a different context than the default.
Support for gx.si

Example link: http://gx.si/In3J1