Merge pull request #1455 from dengemann/release_misc

FIX: various cleanups + fixes
Merge pull request #1456 from dengemann/release_misc

MISC/CLN/DOC: fixes before releasing
Correct EGI layout

The correct flattened polar coord X, Y positions
FIX: remove automatic closing of figures in add_section
Merge pull request #1460 from mainakjas/fix_plot_close

FIX: remove automatic closing of figures in add_section
fix fork fig close