* Fix If-Modified-Since example in API.md
Fixes the example curl request date format. It didn't conform to the IMF-fix standard and was not accepted by the parseDate function.
Signed-off-by: Koen Tange <monokles@protonmail.ch>
* Add If-Modified-Since format description to API.md
Adds a short description elaborating on the different date formats supported by the If-Modified-Since header.
Signed-off-by: Koen Tange <monokles@protonmail.ch>
* Mark old time formats as obsolete in API.md
Clarified in the text that only the IMF-fixformat date format should be used in conjuction with the If-Modified-Since header.
Signed-off-by: Koen Tange <monokles@protonmail.ch>
