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

Change-Id: I6169420328333d0916452aa92efbfa961d72e9c4
diff --git a/apps/kafka-integration/api/pom.xml b/apps/kafka-integration/api/pom.xml
index bacccc6..26294ee 100644
--- a/apps/kafka-integration/api/pom.xml
+++ b/apps/kafka-integration/api/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <artifactId>onos-kafka</artifactId>
         <groupId>org.onosproject</groupId>
-        <version>1.7.0-SNAPSHOT</version>
+        <version>1.7.0-rc2</version>
     </parent>
 
     <artifactId>onos-app-kafka-api</artifactId>
diff --git a/apps/kafka-integration/app/pom.xml b/apps/kafka-integration/app/pom.xml
index 5a6e574..b04374d 100644
--- a/apps/kafka-integration/app/pom.xml
+++ b/apps/kafka-integration/app/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-kafka</artifactId>
-        <version>1.7.0-SNAPSHOT</version>
+        <version>1.7.0-rc2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apps/kafka-integration/core/pom.xml b/apps/kafka-integration/core/pom.xml
index b9f1290..d4c53b3 100644
--- a/apps/kafka-integration/core/pom.xml
+++ b/apps/kafka-integration/core/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-kafka</artifactId>
-        <version>1.7.0-SNAPSHOT</version>
+        <version>1.7.0-rc2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/apps/kafka-integration/pom.xml b/apps/kafka-integration/pom.xml
index 287700d..ec6cfd8 100644
--- a/apps/kafka-integration/pom.xml
+++ b/apps/kafka-integration/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>
 
diff --git a/apps/kafka-integration/web/pom.xml b/apps/kafka-integration/web/pom.xml
index 86c88af..06bd38a 100644
--- a/apps/kafka-integration/web/pom.xml
+++ b/apps/kafka-integration/web/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-kafka</artifactId>
-        <version>1.7.0-SNAPSHOT</version>
+        <version>1.7.0-rc2</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>