allow max-concurrent setting for upstream
Merge remote-tracking branch 'fitstar/master' into throttle_upstream

Conflicts:
	filter/upstream.go
working upstream limiter and a test
added standalone throttler
fixes issues with throttling
make queue length available when throttling upstream
Merge pull request #19 from dgrijalva/throttle_upstream

Throttling
use go1.1 net.TCPConn.SetNoDelay instead of syscalls
simplified nodelay functionality
Merge remote-tracking branch 'origin/master' into go1_1

Conflicts:
	server.go
	server_notwindows.go
Changing http 1.0 keep alive to a set in case there's already a header
Merge branch 'master' of github.com:fitstar/falcore
adding leaky write buffers to everywhere
Changing http 1.0 keep alive to a set in case there's already a header
Merge pull request #20 from fitstar/go1_1

Go1.1 and TCP No Delay
Clean up sentinel channels
gofmt
Merge pull request #22 from titanous/gofmt

gofmt
Don't crash the server if a pipeline panics and there is a handler
Merge remote-tracking branch 'titanous/handle-panic'

Conflicts:
	server.go