Update changelog for 0.4.13-1 release

6 jobs for debian/0.4.13-1 in 8 minutes and 23 seconds (queued for 2 seconds)
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Status Job ID Name Coverage
  Build
passed #242857
build

00:03:58

 
  Test
passed #242860
autopkgtest

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passed #242861
blhc

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passed #242859
lintian

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passed #242862
piuparts

00:04:22

passed #242858
reprotest

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