Removed length of password in serializeLoginMessage().
This broke authentication with VoltDB 4.0.3, and should not be included according to the wire protocol documentation.

Fixes #2
Merge branch 'master' of https://github.com/rbetts/voltdbgo

Conflicts:
	voltdb/io.go
Add support for TIMESTAMP type using time.Time.
Add myself to LICENSE as requested.
Merge pull request #4 from martinhpedersen/timestamp_support

Timestamp support