[release] starting on version 0.9.2
[http] Fix URL parsing
[http] request() should not modify the supplied headers
[compat] add integer_types
[http] fix request body
[protocols] refactor parser interface

Return the number of bytes parsed instead of raising an exception on error.
[jsonrpc] better support for v2 protocol
[logging] show thread information
[logging] support 2.7+ format on 2.6

Python 2.7 and above support implicitly indexed format specifiers.
This saves some typing, so implement a workaround for 2.6.
[docs] fix link to tutorial section

Fixes #3
[pipe] allow getsockname() on server pipes
[signal] add "interrupt" argument to wait()
[logging] remove unused "parent" argument
[core] export version as gruvi.__version__