replace self.baseDirectoryToUse with proper method variable. most excellent.
Improve handling for when dataWithContentsOfURL fails (actually return; instead of just logging error)
[ADD] networkActivityIndicator for ExternalWebViewController
improve appearance/functioning of forward/back buttons
Set back/forward buttons to default to disabled (in viewDidLoad)
Prevent appDelegate crash if visibleViewController isn't a DTCViewController
Fix AppDelegate fetchUpdate call, fix color of syncBar
minor updates (add log to ZipDownloader, update TODO, adjust title for nav bar for now)
[NEW] [TEST] directory and test files (will not be visible in final product
[TESTING] modify news/index.html so we can test internal URLs (click on "Read More..." to see). Change back before shipping.