add lighttpd2 check
merge lighttpd2 check with lighttpd check
Version 3.6.1
Do not use curl in the installation script if it's not installed
Assuming proper stats page suffix depending on lighttpd version
follow the graphite pickle protocol more closely

http://graphite.readthedocs.org/en/1.0/feeding-carbon.html#the-pickle-protocol
Fix variable name
Move jenkins checks to checks.d
Fix jenkins check constructor
Fix a variable name
Fix the logging for jenkins check
fix graphite listener payload serialization (fixes #415)