ConfigHelper.saveSharedPref() methods aren't "safe"
Currently, the @ConfigHelper.saveSharedPref()@ methods perform no instantiation of the '@SharedPreferences shared_preferences@' variable, nor catch the @NullPointerException@ that would result from it not being instantiated.
- This method should probably return a boolean for success/failure
- Try/catch (NullPointerException) may be desirable
- Use of '@if (checkSharedPrefs()){ /* do the save */}@' for instantiation may be desirable (possibly even within a try/catch block)
(from redmine: created on 2013-06-08, closed on 2013-09-06)