Allow users to select in their account what time-zone region they are in and display dates accordingly.

Currently, the date shows for me, 7/11/2012 in the Mental Lockbox but I would prefer the format to be 11/7/2012 as in the UK.

Other than in the ML, I think the long date format currently used is OK for any region.

Similar requests here (but slightly different), so I suppose they could all be included in the same update:

https://simpleology.uservoice.com/forums/106391-simpleology/suggestions/2558795-include-time-zone-for-india

https://simpleology.uservoice.com/forums/106391-simpleology/suggestions/2915422-is-it-possible-to-have-the-time-of-the-time-stamp-