Hans-Christoph Steiner d8879dd425 make DBHelper follow the Java Singleton pattern
It was already behaving like a singleton, but the code was spread around in
other classes.  DBHelper does not use a private constructor though since
the tests prevent it.
2018-01-31 16:20:23 +01:00
..
2018-01-26 22:58:48 +01:00
2017-05-31 17:29:40 +02:00