Remove Program.VersionFull and refactor plugin version checks

Plugins/Plugin.cs

@@ -7,6 +7,9 @@
 
 namespace TweetDuck.Plugins{
     sealed class Plugin{
+        private static readonly Version AppVersion = new Version(Program.VersionTag);
+        private const string VersionWildcard = "*";
+
         public string Identifier { get; }
         public PluginGroup Group { get; }
         public PluginEnvironment Environments { get; private set; }
@@ -50,7 +53,7 @@ public string DefaultConfigPath{
             { "WEBSITE", "" },
             { "CONFIGFILE", "" },
             { "CONFIGDEFAULT", "" },
-            { "REQUIRES", "*" }
+            { "REQUIRES", VersionWildcard }
         };
 
         private bool? canRun;
@@ -209,7 +212,7 @@ private static bool LoadMetadata(string path, Plugin plugin, out string error){
                 return false;
             }
 
-            if (plugin.RequiredVersion.Length == 0 || !(plugin.RequiredVersion.Equals("*") || System.Version.TryParse(plugin.RequiredVersion, out Version _))){
+            if (plugin.RequiredVersion.Length == 0 || !(plugin.RequiredVersion == VersionWildcard || System.Version.TryParse(plugin.RequiredVersion, out Version _))){
                 error = "Plugin contains invalid version: "+plugin.RequiredVersion;
                 return false;
             }
@@ -221,7 +224,7 @@ private static bool LoadMetadata(string path, Plugin plugin, out string error){
         }
 
         private static bool CheckRequiredVersion(string requires){
-            return requires.Equals("*", StringComparison.Ordinal) || Program.Version >= new Version(requires);
+            return requires == VersionWildcard || AppVersion >= new Version(requires);
         }
     }
 }

Program.cs

@@ -22,9 +22,7 @@ static class Program{
         public const string Website = "https://tweetduck.chylex.com";
 
         public const string VersionTag = "1.8.7";
-        public const string VersionFull = "1.8.7";
 
-        public static readonly Version Version = new Version(VersionTag);
         public static readonly bool IsPortable = File.Exists("makeportable");
 
         public static readonly string ProgramPath = AppDomain.CurrentDomain.BaseDirectory;
@@ -48,7 +46,7 @@ static class Program{
 
         private static readonly LockManager LockManager = new LockManager(Path.Combine(StoragePath, ".lock"));
         private static bool HasCleanedUp;
-        
+
         public static UserConfig UserConfig { get; private set; }
         public static SystemConfig SystemConfig { get; private set; }
         public static Reporter Reporter { get; }

Properties/AssemblyInfo.cs

@@ -34,8 +34,8 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion(Program.VersionFull)]
-[assembly: AssemblyFileVersion(Program.VersionFull)]
+[assembly: AssemblyVersion(Program.VersionTag)]
+[assembly: AssemblyFileVersion(Program.VersionTag)]
 
 [assembly: NeutralResourcesLanguage("en")]