(TK-402) Add note about precedence of metric-prefix and server-id options

Add note to clojure client docs about precendence of `metric-prefix` option if
both it and `server-id` are specified as client options.

Also remove some empty lines.

doc/clojure-client.md

@@ -42,7 +42,9 @@ The following are the base set of options supported by the `create-client` funct
   from. If specified, used in the namespace for metrics:
   `puppetlabs.<server-id>.http-client.experimental`.
 * `:metric-prefix`: a string for the prefix for metrics. If specified, metric
-  namespace is `<metric-prefix>.http-client.experimental`.
+  namespace is `<metric-prefix>.http-client.experimental`. If both
+  `metric-prefix` and `server-id` are specified, `metric-prefix` takes
+  precendence.
 
 ### SSL Options
 

src/java/com/puppetlabs/http/client/impl/metrics/TimerUtils.java

@@ -109,5 +109,4 @@ public class TimerUtils {
             return null;
         }
     }
-
 }

src/java/com/puppetlabs/http/client/metrics/Metrics.java

@@ -47,8 +47,6 @@ public class Metrics {
     public enum MetricType { FULL_RESPONSE }
     public enum MetricCategory { URL, URL_AND_METHOD, METRIC_ID }
 
-
-
     public static String urlToMetricUrl(String uriString) throws URISyntaxException {
         final URI uri = new URI(uriString);
         final URI convertedUri = new URI(uri.getScheme(), null, uri.getHost(),