Update changelog for 0.5.7-1 release

8 jobs for debian/0.5.7-1 in 6 minutes and 50 seconds (queued for 3 seconds)
latest
Status Job ID Name Coverage
  Build
passed #282036
build

00:03:10

 
  Test
passed #282041
autopkgtest

00:03:31

passed #282042
blhc

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passed #282040
lintian

00:01:41

passed #282043
piuparts

00:03:33

passed #282039
reprotest

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passed #282038
test-build-all

00:03:10

passed #282037
test-build-any

00:02:19