Remove grails-plugin.xml in favor of the generated plugin meta file

Set archiveClassifier to 'plugin'

Add artifact grails-plugin.xml

Author: rainboyan

plugin/build.gradle

@@ -63,7 +63,7 @@ jar {
         "Implementation-Version": projectVersion,
         "Implementation-Vendor": 'Grace Plugins')
     enabled = true
-    archiveClassifier.set('')
+    archiveClassifier.set('plugin')
     includeEmptyDirs = false
 }
 
@@ -90,6 +90,10 @@ publishing {
 
             from components.java
 
+            artifact source: "${project.buildDir}/classes/groovy/main/META-INF/grails-plugin.xml",
+                classifier: "plugin",
+                extension: 'xml'
+
             pom {
                 name = "Grace View Components"
                 description = "A Grace plugin for creating reusable, testable and encapsulated view components."