cups-filters 2.0.1

[tillkamppeter]

Bug fix release, mainly fixes on the build system, but also on the serial backend

• serial backend: Fixed bug in conversion of comments
  (Pull request serial backend: unbreak build on BSD #548)
• pclmtoraster: Properly set CFLAGS
  As this is a C program, set pclmtoraster_CFLAGS, not pclmtoraster_CXXFLAGS (Pull request pclmtoraster: Properly set CFLAGS #588).
• configure: Remove == bashism
  (Pull request configure: fix broken bashism resulting in logic failure #567)
• configure.ac: Remove Avahi check
  cups-filters does not use Avahi (Pull request configure.ac: remove final traces of avahi #558)

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This discussion was created from the release cups-filters 2.0.1.