Add "skipTests" to the default NetBeans rebuild and build actions

With the test suite taking anywhere from 20-60 minutes already, it
doesn't make sense to constantly re-run it on each build. Instead, we
should schedule a daily action for each operating system on GitHub for
this task.

application/nbactions.xml

@@ -52,4 +52,29 @@
                 <exec.appArgs></exec.appArgs>
             </properties>
         </action>
+        <action>
+            <actionName>rebuild</actionName>
+            <packagings>
+                <packaging>*</packaging>
+            </packagings>
+            <goals>
+                <goal>clean</goal>
+                <goal>install</goal>
+            </goals>
+            <properties>
+                <skipTests>true</skipTests>
+            </properties>
+        </action>
+        <action>
+            <actionName>build</actionName>
+            <packagings>
+                <packaging>*</packaging>
+            </packagings>
+            <goals>
+                <goal>install</goal>
+            </goals>
+            <properties>
+                <skipTests>true</skipTests>
+            </properties>
+        </action>
     </actions>