Merge branch 'master' into cloud-interface

Change-Id: Ie570314a702dfbdebf798273b533256417403209
Signed-off-by: Jee Hyeok Kim <jihyeok13.kim@samsung.com>

diff --cc cloud/interface/src/main/java/org/iotivity/cloud/ciserver/Constants.java
index a6bf033,9ef30d0..766cd3a
--- 1/cloud/interface/src/main/java/org/iotivity/cloud/ciserver/Constants.java
--- 2/cloud/interface/src/main/java/org/iotivity/cloud/ciserver/Constants.java
+++ b/cloud/interface/src/main/java/org/iotivity/cloud/ciserver/Constants.java
@@@ -48,5 -48,7 +48,7 @@@ public class Constants extends OICConst
      public static final String REQ_PING_ARRAY      = "inarray";
      public static final String REQ_PING            = "in";
  
 -
+     public static final String REQ_LINKS           = "links";
+     public static final String REQ_HREF            = "href";
 +    public static final String REQ_CRL = "crl";
  }