Normalized the doc of module Ethif for the direct backend
Updated the Manager modules for the new interface
sync CHANGES and _vars
add socket-/direct- makefile targets to make OPAM splitting easier
fix typo in new Makefile targets
Fix yet another typo in the Makefile (sigh)
mark 0.9.1
fix to work with changed Io_page interface
added a missing tcp state transition and a bit of cleanup
slightly adjusted the fin wait 2 timeout
removed code in write that had been previously moved to pcb and fixed up connect
added code to repack buffers if the packet spans more than 8 buffers
fixed up tests and added a new one
Merge pull request #29 from balrajsingh/master

fixes to tcp and the tcp tests
Typos in doc.
Fixed the socket backend.
Removed unused variable, suppressing warning.
sync CHANGES
bump version
Several improvements and interface changes in Manager.