[GTKUI] Reduce status tab border to 1px
[GTKUI] Rework the sidebar layout

 * Changed variable names to be less confusing.
 * Flake8'd.
 * Move the 'count' to a separate render cell.
 * Reduced size of expander icon to make it less intrusive.
 * Enabled ellipsis on labels so count is still visible.
 * Used pango markup on cell labels and count.
 * No longer set a fixed colour to fix #1193.
[#2497] [GTKUI] Fix the queue 'Clear' button not properly clearing.
[#2472] Add support for anonymous_mode
[#2472] [GTKUI] [WebUI] Add anonymous_mode UI prefs
[GTKUI] Add padding to count in sidebar
[GTKUI] Tweaking layout of Status and Details Tabs
[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