Change policy/distribution logging to slf4j

1) Changed logging from FlexLogger to SLF4J with logback
2) Fixed test cases of distribution REST endpoints having
   infinite while loop

Change-Id: I1551873b3d348f9a7d2b4f8dfc3ae5dd6462bdb8
Issue-ID: POLICY-1346
Signed-off-by: ramverma <ram.krishna.verma@est.tech>
diff --git a/pom.xml b/pom.xml
index a1480e5..acd7337 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,6 +3,7 @@
   ONAP Policy SDC Service Distribution
   ================================================================================
   Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+  Copyright (C) 2019 Nordix Foundation.
   ================================================================================
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
@@ -18,7 +19,8 @@
   ============LICENSE_END=========================================================
   -->
 
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <parent>
@@ -56,7 +58,7 @@
         <module>reception</module>
         <module>forwarding</module>
         <module>plugins</module>
-	<module>packages</module>
+        <module>packages</module>
     </modules>
 
     <dependencies>
@@ -66,21 +68,15 @@
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-ext</artifactId>
-            <version>1.8.0-beta2</version>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-all</artifactId>
+            <scope>test</scope>
         </dependency>
+
         <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-api</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-core</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>ch.qos.logback</groupId>
-            <artifactId>logback-classic</artifactId>
+            <groupId>org.onap.policy.common</groupId>
+            <artifactId>policy-endpoints</artifactId>
+            <version>${policy.common.version}</version>
         </dependency>
     </dependencies>