[ONOS-1925]
1.fix javadocs bugs.
2.add pcep tunnel provider;
3.change pcep to pcep app;
4.fix some bugs according to review suggestions.

Change-Id: I4b90d9bf871dee3be70615d66db3d74f2fd85389
diff --git a/providers/pcep/app/app.xml b/providers/pcep/app/app.xml
new file mode 100644
index 0000000..e5e3db0
--- /dev/null
+++ b/providers/pcep/app/app.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2015 Open Networking Laboratory
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<app name="org.onosproject.pcep" origin="ON.Lab" version="${project.version}"
+     featuresRepo="mvn:${project.groupId}/${project.artifactId}/${project.version}/xml/features"
+     features="${project.artifactId}">
+    <description>${project.description}</description>
+    <artifact>mvn:${project.groupId}/onos-app-pcep-api/${project.version}</artifact>
+    <artifact>mvn:${project.groupId}/onos-pcep-provider-topology/${project.version}</artifact>
+    <artifact>mvn:${project.groupId}/onos-pcep-provider-tunnel/${project.version}</artifact>
+</app>