Fix for bug: pipe at end of item leads to formatting error.
Added call to clean()
Doc directory is Doc not Docs
Test for bug concerning items with umlauts.
Use OS to select robodoc exec extension
--sections and --toc no longer assert() in ascii mode
bump to 4.99.32
Added documentation for item order block
More tests: test for assert in ascii mode, and bug a bug latex generator
bump to 4.99.31
