Initial revision of motd plugin

Add a basic motd displayed on fetch as well as per-subnet messages.

Depends-On: I5d0aeac51b83bf14150fa3036f71965cf2051243
Change-Id: Iecdf21a56ba957aadf9c565557e5cb9f90b32fc1
11 files changed
tree: 0862ae0d6116fd0e5ee92958ca9556d5357d895a
  1. src/
  2. BUCK
  3. LICENSE