[Tests] Update ubuntu icon
[Python-Modernize] lib2to3.fixes.fix_has_key
[Python-Modernize] lib2to3.fixes.fix_except

 * Use 'ex' instead of 'e' to conform with pylint
 * Minimal Flake8 on some files
[Python-Modernize] libmodernize.fixes.fix_print

 * Replaces print with print()
[Python-Modernize] lib2to3.fixes.fix_ws_comma

 * Fixer that changes 'a ,b' into 'a, b'.
[Python-Modernize] libmodernize.fixes.fix_raise
[Console] Fix typo in info
[Console] Replace set with list
[Python-Modernize] lib2to3.fixes.fix_numliterals
[Python-Modernize] Replace im_self with __self__
Sort/prettify imports with isort
[GTKUI] All files Flake8'd and use new header
[GTKUI] Fix isort error in gtkui
Flake8 core and common files

 * Added N802 to flake8 ignore as certain inherited funcs cannot be changed
   to lowercase and this unresolved warning hides other errors/warnings.
 * Include new header
Remove unneeded ez_setup and 'isort' imports