list of user-visible changes between releases of colorifer

[1.0.1]
* no libxml and libing
* new program csed (color sed) - filter for color substitutions in shell pipelines.
* colorifer now only a wrapper to run program and colorize it's output.
  It works like "program 2>&1|([ -f some-file] && ./csed -f some-file)"
  command, but also
  return exit code of program and don't mix stdout and stderr of the program.

[1.0.0]
* ported to new libing interface (0.3.0)
* rewrite colorifer code to use standart algorithms: new algo is more correct and stable
* colorstreams library now a part of colorifer
* use boost
* new config format

[0.6.1]
* added support for color streams, may be by default in the future
* parent send signal to it's child
* added testcase
