Fix names and visibilities, use address type over contract type for function args and returns

packages/contracts/src/contracts/current/protocol/AssetProxyDispatcher/AssetProxyDispatcher.sol

@@ -57,21 +57,21 @@ contract AssetProxyDispatcher is
     ///      An id can only be assigned to a single proxy at a given time,
     ///      however, an asset proxy may be registered to multiple ids.
     /// @param assetProxyId Id to register`newAssetProxy` under.
-    /// @param newAssetProxy asset proxy to register, or 0x0 to unset assetProxyId.
-    /// @param currentAssetProxy Existing asset proxy to overwrite, or 0x0 if assetProxyId is currently unused.
+    /// @param newAssetProxy Address of new asset proxy to register, or 0x0 to unset assetProxyId.
+    /// @param oldAssetProxy Existing asset proxy to overwrite, or 0x0 if assetProxyId is currently unused.
     function registerAssetProxy(
         uint8 assetProxyId,
-        IAssetProxy newAssetProxy,
-        IAssetProxy currentAssetProxy)
+        address newAssetProxy,
+        address oldAssetProxy)
         external
         onlyOwner
     {
         // Ensure the existing asset proxy is not unintentionally overwritten
-        require(currentAssetProxy == assetProxies[assetProxyId]);
+        require(oldAssetProxy == address(assetProxies[assetProxyId]));
 
         // Add asset proxy and log registration
-        assetProxies[assetProxyId] = newAssetProxy;
-        emit AssetProxySet(assetProxyId, newAssetProxy, currentAssetProxy);
+        assetProxies[assetProxyId] = IAssetProxy(newAssetProxy);
+        emit AssetProxySet(assetProxyId, newAssetProxy, oldAssetProxy);
     }
 
     /// @dev Gets an asset proxy.
@@ -79,9 +79,9 @@ contract AssetProxyDispatcher is
     /// @return The asset proxy registered to assetProxyId. Returns 0x0 if no proxy is registered.
     function getAssetProxy(uint8 assetProxyId)
         external view
-        returns (IAssetProxy)
+        returns (address)
     {
         IAssetProxy assetProxy = assetProxies[assetProxyId];
-        return assetProxy;
+        return address(assetProxy);
     }
 }

packages/contracts/src/contracts/current/protocol/AssetProxyDispatcher/IAssetProxyDispatcher.sol

@@ -31,20 +31,20 @@ contract IAssetProxyDispatcher is
     // Logs registration of new asset proxy
     event AssetProxySet(
         uint8 id,
-        IAssetProxy newAssetClassAddress,
-        IAssetProxy oldAssetClassAddress
+        address newAssetProxy,
+        address oldAssetProxy
     );
 
     /// @dev Registers an asset proxy to an asset proxy id.
     ///      An id can only be assigned to a single proxy at a given time,
     ///      however, an asset proxy may be registered to multiple ids.
     /// @param assetProxyId Id to register`newAssetProxy` under.
-    /// @param newAssetProxy asset proxy to register, or 0x0 to unset assetProxyId.
-    /// @param currentAssetProxy Existing asset proxy to overwrite, or 0x0 if assetProxyId is currently unused.
+    /// @param newAssetProxy Address of new asset proxy to register, or 0x0 to unset assetProxyId.
+    /// @param oldAssetProxy Existing asset proxy to overwrite, or 0x0 if assetProxyId is currently unused.
     function registerAssetProxy(
         uint8 assetProxyId,
-        IAssetProxy newAssetProxy,
-        IAssetProxy currentAssetProxy)
+        address newAssetProxy,
+        address oldAssetProxy)
         external;
 
     /// @dev Gets an asset proxy.
@@ -52,5 +52,5 @@ contract IAssetProxyDispatcher is
     /// @return The asset proxy registered to assetProxyId. Returns 0x0 if no proxy is registered.
     function getAssetProxy(uint8 assetProxyId)
         external view
-        returns (IAssetProxy);
+        returns (address);
 }

packages/contracts/src/contracts/current/protocol/Exchange/MixinSettlementProxy.sol

@@ -33,9 +33,9 @@ contract MixinSettlementProxy is
 
     function assetProxyDispatcher()
         public view
-        returns (IAssetProxy)
+        returns (address)
     {
-        return ASSET_PROXY_DISPATCHER;
+        return address(ASSET_PROXY_DISPATCHER);
     }
 
     function zrxProxyData()

packages/contracts/src/contracts/current/utils/Authorizable/Authorizable.sol

@@ -100,9 +100,8 @@ contract Authorizable is
     /// @dev Gets all authorized addresses.
     /// @return Array of authorized addresses.
     function getAuthorizedAddresses()
-        public
-        constant
-        returns (address[])
+        public view
+        returns (address[] memory)
     {
         return authorities;
     }

packages/contracts/src/contracts/current/utils/LibBytes/LibBytes.sol

@@ -25,7 +25,7 @@ contract LibBytes {
     /// @param rhs Second byte array to compare.
     /// @return True if arrays are the same. False otherwise.
     function areBytesEqual(bytes memory lhs, bytes memory rhs)
-        public
+        public pure
         returns (bool equal)
     {
         assembly {