ua: add Boeing 737-824

B738 that has no E+ (e.g. N76526).

Reported-by: pixitha
Signed-off-by: diditclear <didyourupgradeclear@gmail.com>
legs: add lookup functionality during edits

Reported-by: eng3
Signed-off-by: diditclear <didyourupgradeclear@gmail.com>
legs: add ATC communication and Wifi offerings links on edit page

Reported-by: eng3
Signed-off-by: diditclear <didyourupgradeclear@gmail.com>
contribute: add Bitcoin donation button

Signed-off-by: diditclear <didyourupgradeclear@gmail.com>
legs: add OpenFlights CSV import tool

Signed-off-by: diditclear <didyourupgradeclear@gmail.com>
contribute: fix typo in text

Signed-off-by: diditclear <didyourupgradeclear@gmail.com>
leg_test: fix timezone issue in test

Signed-off-by: diditclear <didyourupgradeclear@gmail.com>