Added constraints to the WebView and the MapView so that screen size and screen orientation issues are handled correctly.
Constraint issue with Location Arrow Button
Commented out logging code in CallWikipedia.m
Re-added button to fix sizing constraint bug.  Currently have a position based bug in iOS7 that causes the button to move when switching tab bar items.
Fixed button placement bug.  Button must be aligned to the bottom of the bottom bar not the top of the bottom tab bar.  Then it must be PUSHED outside of the tab bar.  This makes the storyboard look out of whack because it still aligns off the top of the bottom bar but it looks correct in the simulator.
Fixed Format String warnings for Strings using NSInteger. Commented out WikiModel logging to NSLog.
Relinked Button to MapViewController.
Deleted old CallWikipedia model and Location class.
WebView updated so that the TabBar View is hidden to give the page more room on smaller screens. The forward and back button toolbar is hidden unless the back button  can execute a web view goBack.  The forward button is added to the showing toolbar only if the web view can execute a web view goForward.
Merge pull request #22 from phreenet/jds-autolayout-1

Auto Layout Fixes and Web View Clean Up