send app can send MSC as well as BTC using sendform

tested:

BTC send example tx:
https://masterchain.info/sendform.html?addr=17RVTF3vJzsuaGh7a94DFkg4msJ7FcBYgX&amount=0.03&from=182osbPxCo88oaSX4ReJwUr9uAcchmJVaL&currency=BTC&fee=0.00001
https://blockchain.info/tx/82b2f4ed3b5e1d073e503f597da9468ad98fc65c580b3870e9945d0db428de03

MSC send example tx:
https://masterchain.info/sendform.html?addr=17RVTF3vJzsuaGh7a94DFkg4msJ7FcBYgX&amount=0.0046&from=182osbPxCo88oaSX4ReJwUr9uAcchmJVaL&currency=MSC&fee=0.0005
https://masterchain.info/simplesend.html?tx=4c76b492105a1380720ad436be489b8504944c1c9b2f7a76a6da067a80436f54