Revert "Fixing algo and generation modes"

This reverts commit 330fad6ff33e8a7199b77b708ce640f6636403a5.
Revert "Getting more user-friendly (there only remains the "mindocMode" option)."

This reverts commit 759adca88f9aa8117c3bf5b8aadf584f9ed4862f.
Revert "Adding missing GraphvizImageConverter class."

This reverts commit 2418c7b329f02d275442d4e3c4b9051b30ef1d6b.
Revert "Enabling images generation with graphviz conversion, as well as definition-oriented Dot generation and a mindoc compatibility mode."

This reverts commit 5263a910280d3fc091460fdf427a6fb18763cf74.
Revert "Preparing next version"

This reverts commit 07439e4cf277bac64ffc882ca481f53b453dac84.