fix, PEBKAC, spell Africa/Maputo correctly

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
minor, replace EST, CST, PST with their actual IANA names (indicating daylight saving time)

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
update, mic, incorporate deleted MICs

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
fix, icao, kick dupes

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
fix, iata, kick dupes and wrong codes

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>