Updates for Mac build

 - Updates to build on Mac in PRO file (tried to leave windows build alone)
 - Packaged mac icns file
 - Updates to scrypt and scrypt-jane assembly to compile on clang
 - Packaged frameworks and created DMG: https://s3.amazonaws.com/captemulation/dmg/microCoin-qt.dmg
 - Tested sync with blockchain matches http://84.251.34.142:8888/microcoin_blocks/index.php
 - Light testing (2 hours of solo cpu mining and I am still a very poor microcoin user)
 - Microcoin donations accepted: 1MvfwEbqwpm8TwxvnnD34coXaVgeSGT898 (<--- running mac client)