v2.0 (neo-project#25)

* new features

1. Annual fee for assets
2. Add asset APIs
3. Add contract APIs
4. Allow to read storage in verification code
5. New storage context model

* use ApplicationEngine for verification code

* add validator APIs

* limit the size of stack and items

* neo contract and security improvement

1. Limit max transactions per block to 500
2. Limit max length of scripts to 65536 bytes
3. Limit array size and stack size
4. Modify the gas price of Storage.Put
5. Add more apis to smart contract
6. Allow users to migrate contract and storage
7. Upgrade to AntShares.VM 1.8.0

* add test mode to ApplicationEngine

* fix bug of calculating fee of InvocationTransaction

* fix issue of verifying gas

* add events and logs for smart contracts

* rebrand to NEO

* change version to v2.0.0

AntShares.sln → neo.sln

@@ -1,27 +1,22 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.26430.6
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{83696BE0-E444-44DD-9C0D-A61CACFC95E1}"
-EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AntShares", "src\AntShares\AntShares.csproj", "{36447A9B-0311-4D4D-A3D5-AECBE9C15BBC}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{36447A9B-0311-4D4D-A3D5-AECBE9C15BBC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{36447A9B-0311-4D4D-A3D5-AECBE9C15BBC}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{36447A9B-0311-4D4D-A3D5-AECBE9C15BBC}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{36447A9B-0311-4D4D-A3D5-AECBE9C15BBC}.Release|Any CPU.Build.0 = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-	GlobalSection(NestedProjects) = preSolution
-		{36447A9B-0311-4D4D-A3D5-AECBE9C15BBC} = {83696BE0-E444-44DD-9C0D-A61CACFC95E1}
-	EndGlobalSection
-EndGlobal
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.26430.15
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "neo", "neo\neo.csproj", "{36447A9B-0311-4D4D-A3D5-AECBE9C15BBC}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{36447A9B-0311-4D4D-A3D5-AECBE9C15BBC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{36447A9B-0311-4D4D-A3D5-AECBE9C15BBC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{36447A9B-0311-4D4D-A3D5-AECBE9C15BBC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{36447A9B-0311-4D4D-A3D5-AECBE9C15BBC}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

src/AntShares/Consensus/ChangeView.cs → neo/Consensus/ChangeView.cs

@@ -1,7 +1,7 @@
 using System;
 using System.IO;
 
-namespace AntShares.Consensus
+namespace Neo.Consensus
 {
     internal class ChangeView : ConsensusMessage
     {

src/AntShares/Consensus/ConsensusContext.cs → neo/Consensus/ConsensusContext.cs

@@ -1,13 +1,13 @@
-using AntShares.Core;
-using AntShares.Cryptography;
-using AntShares.Cryptography.ECC;
-using AntShares.IO;
-using AntShares.Network.Payloads;
-using AntShares.Wallets;
+using Neo.Core;
+using Neo.Cryptography;
+using Neo.Cryptography.ECC;
+using Neo.IO;
+using Neo.Network.Payloads;
+using Neo.Wallets;
 using System.Collections.Generic;
 using System.Linq;
 
-namespace AntShares.Consensus
+namespace Neo.Consensus
 {
     internal class ConsensusContext
     {

src/AntShares/Consensus/ConsensusMessage.cs → neo/Consensus/ConsensusMessage.cs

@@ -1,9 +1,9 @@
-using AntShares.IO;
+using Neo.IO;
 using System;
 using System.IO;
 using System.Reflection;
 
-namespace AntShares.Consensus
+namespace Neo.Consensus
 {
     internal abstract class ConsensusMessage : ISerializable
     {

src/AntShares/Consensus/ConsensusMessageType.cs → neo/Consensus/ConsensusMessageType.cs

@@ -1,4 +1,4 @@
-namespace AntShares.Consensus
+namespace Neo.Consensus
 {
     internal enum ConsensusMessageType : byte
     {