Fixing submission
Clarifications regarding default priority.  Closes #538.
Default dependency for bad dependencies
Correcting travis logic
Enable faster travis builds
Merge branch 'lxml'
Move alt-svc and http2-encryption to separate repo
fix up markdown
Change log update
Merge branch 'master' of https://github.com/http2/http2-spec
clarified that endpoints can send frames of any type in the half closed (remote) state
Fleshed out examples of state transitions for the lifetime of a stream for a request/response pair and for the lifetime of a stream for a server push. Also added reference to the states description section to these examples.
tried to clarify slightly confusing language wrt PUSH_PROMISE
Centered the stream states figure (it was driving me crazy!).
Correcting whitespace, tweaking grammar.
Whitespace
Clarifying END_SEGMENT a little
wrap
Forbidding WINDOW_UPDATE(0)