don't log a request timeout when a request cannot be queued
remove the need for a scheduled executor service in mod_cluster
Adjusts the value of the default initial window
size to be 65536 bytes as specified by the SPDY spec.
Merge pull request #249 from golovnin/spdy_initial_window_size

Adjusts the value of the default initial window size.
Create AtomicReferenceFieldUpdater in a privilidged action block
Minor clean code
HTTP2 improvements
Fix some more HTTP2 issues
Merge pull request #248 from emuckenhuber/modcluster
Merge pull request #250 from danielsoro/minor-clean-code

Minor clean code