Dark mode enhancements

This release fixes the way the app handles the adaptive columnar layout on iPad and iPhone which fixes a player UI issue that some users were experiencing

General bug fixes and UI fix for search in Dark Mode

BUG FIX: Always show scope bar (airport code, frequency) for search

BUG FIXES:
-Unable to tap last two history items on Recent Channels screen
-Set the audio session earlier in the application lifecycle
-Unable to remove all favorites
-Search screen crash

FEATURE:
Accessibility improvements:
    - Favorite button now describes selected/deselected state
    - “L” and “R” are no longer spoken on stereo feeds
    - Balance slider announced as “Balance”

- Stereo channel support (VU meter/balance)
- Full support for Light/Dark Mode
- Updated iPad user interface
- Mix ATC audio with other apps
- iOS 14 widget
- Misc bug fixes

2.2.1:
- Improved frequency search

2.2:
- Search by frequency
- Recent channels
- Listener count on player screen
- Bug fixes

- Search by frequency
- Recent channels
- Listener count on player screen
- Bug fixes

- Improved handling of Favorites
- ARTCC section headers

Improved streaming engine

* Fix streaming crashes

Bug fix for obscure crash

- Complete re-write to prepare for future features
- New player-centric UI
- Better accessibility support
- Support for newer devices
- Full rotation support
- Improved Bluetooth support
- Car Bluetooth channel title support
- Many bug fixes

- Runs natively on iPad (iOS 8 only)
- Update network reachability code
- Updated various libraries
- Misc. bug fixes
- Remove weather button if stream is HF (not applicable)

- Minor bug fix

- Fixes for iOS 6 and iOS 7

- Enhanced display support for iPhone 6/6+
- Misc. code cleanup changes
- Include @3x Retina HD assets
- Update some 3rd-party modules
- Support various screen sizes on iOS 8
- Misc. iOS 8 cleanup
- Accessibility labels for play/stop/loading button
- Fix location services privacy on iOS 8

Bug fixes

- Updated initial airport database

What's New in Version 1.8

- Code rewritten and optimized for iOS 6 and 7
- This version requires iOS 6.1 or later
- Optimized for iPhone 5
- Enhanced graphics for Retina resolution
- App looks great on iPad now!
- Fixed/enhanced social sharing
- VoiceOver support (accessibility)
- Bug fixes

- Fixed database issue when starting initially without net connection
- Made "stop play" button more visible (red) in player
- Initial compatibility support for iOS 5
- Made small buffer setting lower to reduce reception delay
- Added icon for retina display

- Increased size of default audio buffers (adjustable in preferences).
- Increased reliability and consistency of network detection.
- Increased reliability of feed database maintenance.
- Improved button display for when player goes in and out of buffering.
- Fixed clipping alert error when database refresh alert was showing at the same time as the initial iOS 4.0 alert when user starts app.
- Fixed double iOS 4.0 alert - was actually just hiding and reshowing when refresh alert would show/finish.

- Fixed WiFi network detection issue
- Fixed broken "Edit Favorites" sort capability

- Added dynamic weather radar (USA now, other locations to come)
- Enabled "iPod controls" to control player when app running in background
- Automatic airport database updating (removed preference)
- Airport diagrams available for all airports (USA was always available, now starting to add charts for Canada and other locations)

- Enhanced multitasking support for iOS 4
- Added back background play for older devices (e.g., iPod Touch)