optional APRS flight config
updated APRS flight config; including unit tests
updated APRS callsign list regexp
added live_validation; updated regexp
Tiny refactors to remove long lines, delete empty aprs dicts
Add unit tests for 'aprs dict missing' error
Fix 'Cannot read property 'payloads' of undefined'
Update empty aprs dict tests
On my (debian squeeze) box the font has this on two lines
Add unit tests for space bug
Fix spaces bug
upper-case APRS callsigns
Merge rossengeorgiev's APRS import addition

rossengeorgiev:aprs_import + modifications

Closes #21