Bump version numbers for 1.4.15 release.

bramble-android/build.gradle

@@ -15,8 +15,8 @@ android {
 	defaultConfig {
 		minSdkVersion 16
 		targetSdkVersion 30
-		versionCode 10414
-		versionName "1.4.14"
+		versionCode 10415
+		versionName "1.4.15"
 		consumerProguardFiles 'proguard-rules.txt'
 
 		testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

briar-android/build.gradle

@@ -26,8 +26,8 @@ android {
 	defaultConfig {
 		minSdkVersion 16
 		targetSdkVersion 30
-		versionCode 10414
-		versionName "1.4.14"
+		versionCode 10415
+		versionName "1.4.15"
 		applicationId "org.briarproject.briar.android"
 		buildConfigField "String", "TorVersion", "\"$tor_version\""