Added initializers and setters to WWLocation to set the latitude and longitude from the following two sources: (1) latitude as degrees and longitude as time zone; (2) latitude and longitude from a Core Location CLLocation object. Added the CoreLocation framework as a dependency of the WorldWind project.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1137 1c351a6f-456c-4935-88af-207f26c224cf
Added the gotoLocation message to WWNavigator and its implementation in WWBasicNavigator. Modified WWBasicNavigator's initializer to set the look-at latitude and longitude using the device's last known location. If the device has no last known location, WWBasicNavigator falls back to setting the look-at latitude and longitude using the default latitude and the current time zone.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1138 1c351a6f-456c-4935-88af-207f26c224cf
Added the LocationController class to the World Wind Examples project. Modified the examples ViewController to use the LocationController in order to navigate to the device's location when the app starts, and to track the device's location when the user double-taps the screen. Modified the World Wind Examples Info.plist file to include a location services usage description.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1139 1c351a6f-456c-4935-88af-207f26c224cf
Added the constant WW_NAVIGATOR_GESTURE_RECOGNIZED. Modified the default navigator to post a navigator gesture recognized notification when a navigator gesture begins. Modified the example view controller to observe navigator gesture recognized notifications and stop all active location controllers upon receiving this notification.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1140 1c351a6f-456c-4935-88af-207f26c224cf
Added casts to eliminate warnings from WWPVRTCImage.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1141 1c351a6f-456c-4935-88af-207f26c224cf
Added toolbar.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1142 1c351a6f-456c-4935-88af-207f26c224cf
Added white versions of the location arrow.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1143 1c351a6f-456c-4935-88af-207f26c224cf
Changed toolbar style to black.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1144 1c351a6f-456c-4935-88af-207f26c224cf
Added initial cut at a layer list.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1145 1c351a6f-456c-4935-88af-207f26c224cf
Repaired layer list popover's not showing up on device.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1146 1c351a6f-456c-4935-88af-207f26c224cf
Added layer list selection. Added all DAFIF layers to layer list but set them to initially disabled.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1147 1c351a6f-456c-4935-88af-207f26c224cf
Parameterized toolbar height. Added logic to prevent use of layer list popover on iPhone.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1148 1c351a6f-456c-4935-88af-207f26c224cf
Added layer list thumbnails.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1149 1c351a6f-456c-4935-88af-207f26c224cf
Added utility methods to WWLocation that interpolate locations along great circle and rhumb paths, and forecast locations given a heading, velocity, and time.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1150 1c351a6f-456c-4935-88af-207f26c224cf
Added goto methods on WWNavigator to support animating to a location, a location with a range, and a region with a center and radius.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1151 1c351a6f-456c-4935-88af-207f26c224cf
Modified the World Wind Examples location controller to smoothly animate to the initial location, and smoothly track the current location. Modified the World Wind examples view controller to toggle location tracking when the location button is tapped.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1152 1c351a6f-456c-4935-88af-207f26c224cf
Modified the World Wind Examples location controller to eliminate jumping when location tracking is re-enabled.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1153 1c351a6f-456c-4935-88af-207f26c224cf
Added an initializer and a setter to WWLocation to convert a Core Location CLLocationCoordinate2D struct to a WWLocation.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1154 1c351a6f-456c-4935-88af-207f26c224cf
Integrated basic use of the Core Location geocoder capability into the World Wind Examples search bar.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1155 1c351a6f-456c-4935-88af-207f26c224cf
Modified the World Wind examples view controller to dismiss the search keyboard when the WorldWindView is touched.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1156 1c351a6f-456c-4935-88af-207f26c224cf