lighttpd-starter: Update default settings to overcome some issues
- set server.event-handler = "linux-sysepoll"
- increase server.max-connections = 300
- remove lighttpd worker processes
- make php-fcgi handler optional

Bug: 68431
Change-Id: I7f092f02a913f631cebdf4b88e7605b4999c511a
Merge "lighttpd-starter: Update default settings to overcome some issues - set server.event-handler = "linux-sysepoll" - increase server.max-connections = 300 - remove lighttpd worker processes - make php-fcgi handler optional" into production