fix update checker's snapshot versions

src/main/java/xyz/webmc/originblacklist/base/OriginBlacklist.java

@@ -289,7 +289,7 @@ public final class OriginBlacklist {
       this.updateAvailable = UpdateChecker.checkForUpdate(PLUGIN_REPO, this.plugin.getPluginVersion(),
           this.config.get("update_checker.allow_snapshots").getAsBoolean());
       if (this.updateAvailable) {
-        this.plugin.log(EnumLogLevel.INFO, "Update Available! Download at https://github.com/" + PLUGIN_REPO + ".git");
+        this.plugin.log(EnumLogLevel.INFO, "An update is available! Download it at https://github.com/" + PLUGIN_REPO + ".git");
       }
     });
   }

src/main/java/xyz/webmc/originblacklist/base/command/OriginBlacklistCommand.java

@@ -69,8 +69,8 @@ public class OriginBlacklistCommand implements ICommand {
   public void usage(CommandContext ctx) {
     ctx.reply("<aqua>Commands:</aqua>");
     ctx.reply("<gray>  - /originblacklist reload</gray>");
-    //ctx.reply("<gray>  - /originblacklist add <brand/origin/name/ip> <value></gray>");
+    // ctx.reply("<gray>  - /originblacklist add <brand/origin/name/ip> <value></gray>");
-    //ctx.reply("<gray>  - /originblacklist remove <brand/origin/name/ip> <value></gray>");
+    // ctx.reply("<gray>  - /originblacklist remove <brand/origin/name/ip> <value></gray>");
     ctx.reply("<gray>  - /originblacklist list</gray>");
   }
 }

src/main/java/xyz/webmc/originblacklist/base/util/UpdateChecker.java

@@ -6,6 +6,7 @@ import java.net.HttpURLConnection;
 import java.net.URL;
 
 import org.semver4j.Semver;
+import org.semver4j.Semver.VersionDiff;
 
 import de.marhali.json5.Json5;
 import de.marhali.json5.Json5Array;
@@ -33,7 +34,7 @@ public class UpdateChecker {
             final Json5Object obj = element.getAsJson5Object();
             final String tag = obj.get("tag_name").getAsString();
             final Semver ver = new Semver(tag.substring(1));
-            if (ver.isGreaterThan(currentVersion)) {
+            if (ver.isGreaterThan(currentVersion) && (allowPreRelease || currentVersion.diff(ver) != VersionDiff.BUILD)) {
               return true;
             }
           }