Tweaks for docs/INSTALL-OSX-Homebrew guide.
Added OTParty::GetAgentByIndex

Signed-off-by: FellowTraveler <F3llowTraveler@gmail.com>
Merge pull request #171 from randy-waterhouse/master

OSX-Homebrew guide tweaks
Added missing funcs reported by randy-waterhouse

Signed-off-by: FellowTraveler <F3llowTraveler@gmail.com>
Merge branch 'credentials'
windows fixes