tests: adjust deflists test for PyMD 2.1 Since PyMD 2.1, multi-line descriptions in defintion lists do not need to be indented, i.e. unindented continuation lines do not break definition lists anymoe. This also means that multi-line descriptions must be followed by a new line.
markdown: do not use placeholders for escaped characters This patch recreates the Python Markdown 2.0.3 behavior where escaped characters are simply unescaped. Python Markdown 2.1 replaces them with placeholders which makes it impossible to decide if it is some inline HTML, some escaped character or anything else. Additionally it is not possible to apply special treatment to the escaped characters because they are hidden.