Merge branch 'develop' into feature/site-settings-review

Conflicts:
	WordPress/src/main/java/org/wordpress/android/ui/prefs/BlogPreferencesActivity.java
	WordPress/src/main/res/values/styles_calypso.xml

Author: tonyr59h

WordPressUtils/src/main/java/org/wordpress/android/util/ProfilingUtils.java

@@ -28,6 +28,10 @@ public static void dump() {
         getInstance().dumpToLog();
     }
 
+    public static void stop() {
+        getInstance().reset(null);
+    }
+
     private static ProfilingUtils getInstance() {
         if (sInstance == null) {
             sInstance = new ProfilingUtils();
@@ -56,12 +60,18 @@ public void reset() {
     }
 
     public void addSplit(String splitLabel) {
+        if (mLabel == null) {
+            return;
+        }
         long now = SystemClock.elapsedRealtime();
         mSplits.add(now);
         mSplitLabels.add(splitLabel);
     }
 
     public void dumpToLog() {
+        if (mLabel == null) {
+            return;
+        }
         AppLog.d(T.PROFILING, mLabel + ": begin");
         final long first = mSplits.get(0);
         long now = first;