Bumping pom versions to 1.7.0-rc2 and fixing some maven issues

Change-Id: I6169420328333d0916452aa92efbfa961d72e9c4
diff --git a/apps/pce/app/pom.xml b/apps/pce/app/pom.xml
index ba5f6b7..99e2e16 100644
--- a/apps/pce/app/pom.xml
+++ b/apps/pce/app/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-pce</artifactId>
-        <version>1.7.0-SNAPSHOT</version>
+        <version>1.7.0-rc2</version>
     </parent>
     <artifactId>onos-app-pce</artifactId>
     <packaging>bundle</packaging>
diff --git a/apps/pce/pcerest/pom.xml b/apps/pce/pcerest/pom.xml
index ceb1344..858c6b7 100644
--- a/apps/pce/pcerest/pom.xml
+++ b/apps/pce/pcerest/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-pce</artifactId>
-        <version>1.7.0-SNAPSHOT</version>
+        <version>1.7.0-rc2</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/apps/pce/pceweb/pom.xml b/apps/pce/pceweb/pom.xml
index b04dc31..967b8c4 100644
--- a/apps/pce/pceweb/pom.xml
+++ b/apps/pce/pceweb/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-pce</artifactId>
-        <version>1.7.0-SNAPSHOT</version>
+        <version>1.7.0-rc2</version>
     </parent>
 
     <artifactId>onos-app-pceweb</artifactId>
diff --git a/apps/pce/pom.xml b/apps/pce/pom.xml
index ec444fd..2bfd227 100644
--- a/apps/pce/pom.xml
+++ b/apps/pce/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-apps</artifactId>
-        <version>1.7.0-SNAPSHOT</version>
+        <version>1.7.0-rc2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>