Returns false (previously, undefined) when property doesn't exist

• updated build map 13f360a
• getPkgProp returns false instead of undefined for missing props (#13) 1d09b23
• Added FAQ and fixed returns f52fa33
• touchups 245185e
• Updated tests to reflect that false is being returned 6b3cc88
• returning handleError now (to pass through false) e0379fb

v0.3.0...v0.3.1