ConfigControllerImpl reads disk on UI thread, violating strict mode

08-28 22:33:05.205 D/StrictMode(24991): StrictMode policy violation; ~duration=23 ms: android.os.StrictMode$StrictModeDiskReadViolation: policy=31 violation=2
08-28 22:33:05.205 D/StrictMode(24991):         at android.os.StrictMode$AndroidBlockGuardPolicy.onReadFromDisk(StrictMode.java:1151)
08-28 22:33:05.205 D/StrictMode(24991):         at libcore.io.BlockGuardOs.stat(BlockGuardOs.java:292)
08-28 22:33:05.205 D/StrictMode(24991):         at java.io.File.isDirectory(File.java:524)
08-28 22:33:05.205 D/StrictMode(24991):         at org.briarproject.android.AppModule$2.databaseExists(AppModule.java:79)
08-28 22:33:05.205 D/StrictMode(24991):         at org.briarproject.android.controller.ConfigControllerImpl.accountExists(ConfigControllerImpl.java:41)
08-28 22:33:05.205 D/StrictMode(24991):         at org.briarproject.android.SplashScreenActivity.startNextActivity(SplashScreenActivity.java:67)
08-28 22:33:05.205 D/StrictMode(24991):         at org.briarproject.android.SplashScreenActivity$1.run(SplashScreenActivity.java:51)