RallyBlitz Nav

This release fixes two new bugs:
1. the waypoint guidance arrow sometimes doesn't appear, and
2. resetting waypoints functions correctly.

This version contains an edge-case bug fix related to volume controls and ODO adjustment.

Version 2.2 includes an important bug fix and enhancements:
- Volume controls work again with iOS 15;
- support for FIA/FIM WPE and WPC waypoint types;
- view your progress on the same map that's bundled with RBNavPro

This version includes the following enhancements:
- choose to apply FIA radii defaults to your GPX tracks;
- or specify your own custom waypoint open and clear radii defaults;
- FIA-style waypoint icons and alerts.

Fixes an OpenRally GPX issue.

Waypoints are now available from the main screens WP button.

Localization fixes for European users. This resolves odometer update issues reported by some European users.

Device volume events will adjust ODO A.

RallyBlitz Nav has been ported to Swift and now shares the same navigation core components as RallyBlitz NavPro.

Release 1.4.7 includes the following:
- A new logo and icon;
- Support for adjusting the stage ODO by hundredths;
- Support for Tulip and OpenRally GPX extensions; and
- ODO B changes are audited.

This update contains some bug fixes:

- Adjusting ODO B no longer crashes the app
- iPhone 6+ ODO B layout issues have been resolved
- Location Service error handling has been improved.

- Load and store multiple GPX/RBX waypoint files in RB Nav!
- Added support for scrambled GPX files in *.RBX file format. Open those files from email, Dropbox, Drive, etc into RallyBlitz Nav.
- Danger 3 and Speed Zone alerts overlay the ODO/CAP screen now.
- The ODO/CAP readout remains readable while a Danger alert is active.
- Danger 3 bubbles are shaped like a half-donut, meaning they are dismissed when the user either:
-Turns away from the hazard, or
- Moves to within 25 m of the hazard, and thus should be able to see it
- Speed Zone alerts are triggered if the devices senses it is exceeding the speed limit by 9 mph/kph, in which case the red speed limit alert overlays on the ODO/CAP screen until the device speed drops back down below that threshold.
- ODO/CAP and Waypoint guidance screens won't auto-rotate if the device senses that it's moving.
- The ODO readout will always fit on the main screen - no more clipping numerals at the edges of the device screen.

GPX Waypoints:
- Load your GPX Waypoints via Email attachments or Dropbox
- RallyBlitz will automatically guide you to the active Waypoint when you're within 400m
- "Caution 3" Waypoints warn the pilot of race hazards
- "Speed Zone" Waypoints make sure the pilot knows when they need to obey sections with speed limits
- Use RallyBlitz in Waypoint-only mode or in Nav+Waypoint mode

ODO and Compass heading can be swapped on the main screen.

Black-on-white high-contrast ODO display is now supported!

- Supports playing music in the background
- Removed the ZERO button from ODO A
- Fixed one or two issues with ODO accumulation

New features include:
- a speedometer,
- improved user experience with preference setting,
- support for both left- and right-landscape orientations, and
- an optional odometer scale factor