Use common program initialization mechanism

Update Makefile with conveniences from **vaultaire**.

Update dependency on **vaultaire-common**. Use Vaultaire.Program's
initalizeProgram function to setup logging and signal handling.
Correct debug labels
Use configure time constants

Import Setup.hs configuration mechanism from **http-streams**, having
it write constants to Package.hs in the src/ directory.

Use to compose banner for program initalization.
Merge pull request #6 from anchor/common-program-initialization

Improve program initialization