Merge pull request #171 from DavidVorick/review

Mild refactor of erasure package.
allow client to select bootstrap ID

TODO: implement an RPC "Ping" to allow for ID-specific pinging.
Currently, the client will report "Successfully Connected!" even
if the ID is wrong.
Add Disconnect method to Client
Merge branch 'master' into review

Conflicts:
	src/client/client.go