Add Travis badge to README

[#80482302]

Signed-off-by: John Tuley <jtuley@pivotal.io>
Correct %q to %w in README

[#80482302]

Signed-off-by: John Tuley <jtuley@pivotal.io>
Check parameters at initialization

[#80482302]

Signed-off-by: John Tuley <jtuley@pivotal.io>