Add license and readme.

LICENSE

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+Copyright (c) 2012 CloudMine LLC, http://cloudmine.me
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+DeviceTracker is a sample project that illustrates how to integrate CloudMine with Urban Airship in order to implement geo-fencing and push notifications.
+
+This project was not intended for distribtution, however feel free to use any of the source in your own projects (see LICENSE file for details). In order for this
+project to actually function properly, you will need to install it on an iOS device running iOS 5.0 or later. **Push notifications do not work in the iOS simulator.**
+
+There are already CloudMine credentials embedded in this sample project. Feel free to play around with it at no charge. It is important to note that
+you should *never* embed your secret keys in code that will be distributed to other people unless you're okay with being charged for their running of that code.