reverted change to CLLocationManger's pausesLocationUpdatesAutomatically property
making the survey look better, work better

-added custom cell for displaying text
more customization of survey and splash view controllers

- splash screen now allows us to get out of there with the no button
- added new custom button class for yes/no buttons
- added new header view for survey
added new button cell
postal code validation working, again -_-
fixed bug where new points would be added to map even if we're only looking at yesterday
when in location monitoring mode, the 'user location' button now centres the map on the monitored region
changed the fill color of the monitored region
reduced monitored region size