curl and libcurl 7.78.1

 Public curl releases:         202
 Command line options:         242
 curl_easy_setopt() options:   290
 Public functions in libcurl:  85
 Contributors:                 2459

This release includes the following changes:

 o

This release includes the following bugfixes:

 o configure: tweak nghttp2 library name fix [2]
 o CURLMOPT_TIMERFUNCTION.3: remove misplaced "time" [5]
 o docs/MQTT: update state of username/password support [4]
 o Get rid of the unused HAVE_SIG_ATOMIC_T et. al.
 o http_proxy: clear 'sending' when the outgoing request is sent [6]

This release includes the following known bugs:

 o see docs/KNOWN_BUGS (https://curl.se/docs/knownbugs.html)

This release would not have looked like this without help, code, reports and
advice from friends like these:

  Bastian Krause, Christian Weisgerber, Dan Fandrich, Daniel Stenberg,
  Josh Soref, Oleg Pudeyev, Ray Satiro, zloi-user on github,
  (8 contributors)

References to bug reports and discussions on issues:

 [2] = https://curl.se/bug/?i=7485
 [4] = https://curl.se/bug/?i=7474
 [5] = https://curl.se/bug/?i=7470
 [6] = https://curl.se/bug/?i=7155
