Merge pull request #696 from harshanL/master

Updated device-mgt core version.

pom.xml

@@ -1128,8 +1128,8 @@
         <javax.ws.rs.version>1.1.1</javax.ws.rs.version>
 
         <!-- Carbon Device Management -->
-        <carbon.devicemgt.version>2.0.74</carbon.devicemgt.version>
+        <carbon.devicemgt.version>3.0.0</carbon.devicemgt.version>
-        <carbon.devicemgt.version.range>[2.0.0, 3.0.0)</carbon.devicemgt.version.range>
+        <carbon.devicemgt.version.range>[3.0.0, 4.0.0)</carbon.devicemgt.version.range>
 
         <!-- Carbon App Management -->
         <carbon.appmgt.version>1.2.25</carbon.appmgt.version>