brian face explosion
completes Ch 27.
ch27, challenge 1, part 1: add caching layer
ch28: - turn off " load new page at end of page"
- add search methods
search now working.
adds search view
flash back to ch27 challenge: changes LruCache to be from support library not current library
ch28, challenge 1, repopulate search dialog with prior search query
code formatting
ch28 challenge2, adds toast for search results
- adds intent service to poll for new photos
- adds menu item to start/stop polling
adds notification for new photos