Added possiblity to delete connection entries.

Author: Khôi Tran

src/main/kotlin/ch/compile/blitzremote/actions/DeleteAction.kt

@@ -0,0 +1,18 @@
+package ch.compile.blitzremote.actions
+
+import ch.compile.blitzremote.model.AbstractBlitzTreeNode
+import ch.compile.blitzremote.model.ConnectionModel
+import org.slf4j.LoggerFactory
+import java.awt.event.ActionEvent
+import javax.swing.AbstractAction
+
+open class DeleteAction(private val treeNode: AbstractBlitzTreeNode) : AbstractAction("Delete") {
+    companion object {
+        val LOG = LoggerFactory.getLogger(this::class.java)!!
+    }
+
+    override fun actionPerformed(p0: ActionEvent?) {
+        ConnectionModel.removeNodeFromParent(treeNode)
+    }
+
+}

src/main/kotlin/ch/compile/blitzremote/model/AbstractBlitzTreeNode.kt

@@ -1,5 +1,6 @@
 package ch.compile.blitzremote.model
 
+import ch.compile.blitzremote.actions.DeleteAction
 import com.fasterxml.jackson.annotation.JsonInclude
 import com.fasterxml.jackson.databind.annotation.JsonSerialize
 import java.io.Serializable
@@ -9,7 +10,7 @@ import javax.swing.tree.DefaultMutableTreeNode
 @JsonInclude(JsonInclude.Include.NON_NULL)
 abstract class AbstractBlitzTreeNode(obj: Any, hasChildren: Boolean) : DefaultMutableTreeNode(obj, hasChildren), Serializable {
     open val actions: List<Action>
-        get() = listOf()
+        get() = listOf(DeleteAction(this))
 
     override fun toString(): String {
         return this.userObject.toString()