Edits to the panda paper
Merge pull request #94 from arlolra/panda

Edits to the panda paper
doc: don't set ORPort.

The exit instructions were suggesting that server operators set the
ORPort, which is probably a bad idea.
Changes to support the native, OS X GUI.

This commit contains changes to the generic parts of the codebase to
support the native, OS X GUI. The GUI isn't ready yet and the bulk of it
will live in a branch for now.
cli: print sendCommand errors instead of logging