3.0.0

version bump to 3.0.0

0.2.0

• Use ok_txn_amount instead of ok_txn_gross to follow OkPay API changes (@SilverFire, @BladeRoot)
• Added IPN and fees support (@BladeRoot, @hiqsol)
• Enhanced tests, other minor enhancements (@hiqsol)

0.1.0

• Added tests (@SilverFire, @BladeRoot, @hiqsol)
• Redone to omnipay-okpay (@hiqsol)
• Added basics (@hiqsol)