updating this to 15.5.0-RC-1-multi-SDK16

in lite of the feature enhancements and new version of tor

app/build.gradle

@@ -26,15 +26,15 @@ android {
             applicationId 'org.torproject.android'
             targetSdkVersion 23
             maxSdkVersion 23
-            versionCode 15440002
-            versionName '15.4.4-BETA-2-multi-SDK16'
+            versionCode 15500000
+            versionName '15.5.0-RC-1-multi-SDK16'
         }
         fullperm {
             minSdkVersion 23
             applicationId 'org.torproject.android'
             targetSdkVersion 25
-            versionCode 15440003
-            versionName '15.4.3-BETA-2-multi-SDK23'
+            versionCode 15500001
+            versionName '15.5.0-RC-1-multi-SDK23'
         }
     }
 }