Version 5.4

OpenKeychain/build.gradle

@@ -178,8 +178,8 @@ android {
     defaultConfig {
         minSdkVersion 15
         targetSdkVersion 28
-        versionCode 53004
-        versionName "5.3"
+        versionCode 54000
+        versionName "5.4"
         applicationId "org.sufficientlysecure.keychain"
         // the androidjunitrunner is broken regarding coverage, see here:
         // https://code.google.com/p/android/issues/detail?id=170607