BUG: Address strips out trailing spaces from an address string

[gabegattis]

https://github.com/bitpay/bitcore-lib/blob/master/lib/address.js#L278 trims trailing whitespace from the address string. This is not strict validation. Spaces are not valid characters in an address. Code relying on bitcore-lib to validate an address need to know that the exact string is a valid address.

[afk11]

+1