Upgraded java-cloudant dependency to 2.6.2

Author: ricellis

build.gradle

@@ -44,7 +44,7 @@ subprojects {
 
     dependencies {
         // Cloudant client (java-cloudant) version
-        def javaCloudantVersion = '2.5.0'
+        def javaCloudantVersion = '2.6.2'
         // Dependency on java-cloudant
         compile group: 'com.cloudant', name: 'cloudant-client', version: javaCloudantVersion
         // Dependencies for inheriting javadoc and creating doc links