Uncompressed keys should not be created by default

[kleetus]

var bitcore = require('bitcore-lib');
var assert = require('assert');                                                                                                                                                                                   
var crypto = require('crypto');
var privateKey = bitcore.PrivateKey.fromBuffer(crypto.randomBytes(32));
assert(privateKey.toObject().compressed, 'key should be compressed but isn\'t');

https://github.com/bitpay/bitcore-lib/blob/master/lib/privatekey.js#L184

[braydonf]

+1