I am new to bitbucket and mercurial and hope that this pull request is
suited for the following purpose:
I tried to fix four bugs in dime, but I am not sure if my fixes are o. k. and I would
like to have them reviewed by someone familiar with dime.
The bugs and the fixes are described in the commited files and I also created
some minimal DXF-files for reproducing dime's behaviour I regard es being wrong.
Furthermore, I found and described two more "bugs", but could not fix them.
Of course, I will modify the cpp files as far as required (removing fprintfs and comments etc.)
and remove the test files and README's before the final pull request.
If I should have used another method to report these bugs, please let me know!