This fixes the issue that `ls -F "%p %s"` doesn't work, because the
double quotes weren't interpreted properly.

Reported by @mruwek.

Conflicts:
	setup.py
	topydo/lib/ExpressionCommand.py

I.e. from view widget to the commandline.

This was the result of the backward incompatible change in
prompt-toolkit 0.47.

This one supports the `complete_while_typing` flag in boolean form.

Windows cmd 2 -- add color to output on Windows

Fixes #32

See #32

Insprired from the Simpletask client for Android.

https://github.com/mpcjanssen/simpletask-android

See:
https://bitbucket.org/logilab/pylint/issues/487/configparserget-return-value-gets-treated

Fixes #20.

Tags with a value of length 1 were not highlighted with the metadata color.

Compare:

http://pythex.org/?regex=\b\S%2B%3A[^%2F\s]\S%2B\b&test_string=star%3A1%0Astar%3A12&ignorecase=0&multiline=0&dotall=0&verbose=0

http://pythex.org/?regex=\b\S%2B%3A[^%2F\s]\S*\b&test_string=star%3A1%0Astar%3A12&ignorecase=0&multiline=0&dotall=0&verbose=0

This data should be stored for editing the view, or persisting it.

The function to generate a list of GrepFilters, OrdinalTagFilters
NegationFilters is needed by the new UI. Move this functionality
the ExpressionCommand to the Filter module.