timezonesDB.json not found in app bundle

[rubnov]

On the latest tag (1.1), the method importDataBaseFromFile still attempts to load the timezonesDB.json from the mainBundle, which is the host application's bundle. The file isn't found there, but rather inside APTimeZones own Framework bundle. As a result, the following assertion fails and the app crashes in debug:

    NSAssert(jsonData.length != 0, @"timezonesDB.json not found in app bundle");