move OSX specific calls to build tagged files
benchmark secure channel
fix bug
implement signed pipe and add blowfish cipher to supported suites
add blowfish code and refactor pipes and duplex a little
msgio pooling first hack
moved pipes package
Reenable secure channel code
shrink msgio buffer size to decrease memory pressure
more memory tweaks
cut down on allocations
address comments from PR
remove sha1 from hmac hash suite options
dagservice interface fix
some small cleanup of logging
finish addressing PR concerns
cleanup from CR
remove signed pipe
make FetchGraph waitable