Add git.mk to automatically generate .gitignore
Modernize autostuff
Drop action-list
Drop edit mode
Add a header bar
Add an initial buttonbox with widgets path
Add an initial version of a css class browser
Add a toolbar in the css class browser
Implement 'restore to defaults' css toolbar button
Add a Custom CSS tab, allowing live editing of CSS
Give more room to button path
Get rid of XWindow column
Modernize a bit the widget tree

Don't use deprecated functions and use modern
gobject macros
Split CSS editor in two: global and per widget
Put the classes list inside a scrolled window
Allow editing object properties that are objects themselves
Remove some deprecated functions

Avoid compiler warnings...
Use the properties blurbs as tooltips in prop inspector
Always use gobject introspection for the python editor