Merge with master

test/helpers/PausableTokenMock.sol

@@ -0,0 +1,12 @@
+pragma solidity ^0.4.8;
+
+import '../../contracts/token/PausableToken.sol';
+
+// mock class using PausableToken
+contract PausableTokenMock is PausableToken {
+
+  function PausableTokenMock(address initialAccount, uint initialBalance) {
+    balances[initialAccount] = initialBalance;
+  }
+
+}