Version 1.7
 + if speed detected, it is shown as overlay on main screen
 + added metric and imperial units switch
 + added support for custom APRS filters
 + added detailed GPS information screen
 * resolved crashes during application start
 * resolved text truncation on LOG screen
 * resolved text truncation on HELP screen
 + added new items to HELP screen
 * changed custom interval upper limit to 1000s
 * fixed visual bugs on Settings screen
 + added data RX and TX counters to LOG screen
 + added disconnect button
 - removed "(iBCNU.us)" from streams
 * changed splash screen