Added new credentials to asset/server contracts.

Signed-off-by: FellowTraveler <F3llowTraveler@gmail.com>
Merge pull request #158 from randy-waterhouse/master

Update linux install docs.
compile on windows, better unicode support
Merge pull request #159 from da2ce7/master

Updates For Windows; Better Unicode Support
Updates to newserver/newasset + import/export Nym
(for the new credentials stuff.)

Signed-off-by: FellowTraveler <F3llowTraveler@gmail.com>