Bump upstream version to 2.0.4

2.0.3 segfaulted on i386
8 jobs for master in 6 minutes and 37 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Build
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build:testing

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passed #222222
build:unstable

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  Test
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autopkgtest:testing

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passed #222226
autopkgtest:unstable

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blhc:testing

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passed #222228
blhc:unstable

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passed #222223
lintian:testing

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passed #222224
lintian:unstable

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