Merge pull request #6 from mastercoin-MSC/master

Sync up
Merge pull request #7 from Nevtep/fix-243

Fix 243
Merge pull request #8 from mastercoin-MSC/master

Merge pull request #461 from Nevtep/fix-243
Limit Sell's to MSC
Merge pull request #463 from achamely/master

Limit Sale Page to only Valid Currencies