Remove all string exceptions (#313)
Use std-module `optparse` instead of `twisted.python.usage` and save a lot of code.
Cleanup: remove meaningsless value used in some TypeException
Cleanup: according to pep-8 exceptions should be written Exception()
Added another example to manpage (fixes #297)
gst renderer: added flac support
Reformatted long_description to fit into 75 characters per line.
Converted man-page into a reStructuredText which is much easier to maintain.

This includes a new command `build_docs` in setup.py to build the
actual man-page. Thus `python setup.py build_docs` has to be run
after every change to `coherence.rst`. This is meant to be done by
the maintainers so the repository always contains a current man page.
Minimalistic cleanup.
Fixed: `install_requires` has to be set even if the modules are already installed.
Added ispell-local-dictionary header
Made extension runnable with nautilus 3.4.2
Merge pull request from phiamo/master.

Made play extension running with latest nautilus.
Merge pull request from phiamo/master.

Made play extension running with latest nautilus.
Merge branch 'local-changes' into develop.

Conflicts:
	setup.py