TS-2873 Cleanup SPDY metrics and configs
TS-2872 Can't set "Send Window" for SPDY/3.1 > 64k.

Most of this code is Brian Geffon's fault.
TS-2874 Make some of the SPDY metrics persistent
TS-2875 Change hwloc library env variables from hwloc_ to HWLOC_
Merge branch 'master' into 5.0.x