onSizeReq turned to getsize
Added an extension preserving an old method
Mucking about with stetic GUIs
Destroy the Stetic generation & turn generated files into permanent ones

Ugly, hacky and not very maintainable, but we'll see if leads to compileable code.
Made Render for CellSurface work again
Fixed cellrenderer size getting
Merge branch 'gtk3' into gtk3-noStetic
Fixing things I thought were fixed

Turns out then when other broken things get fixed, these broken things start showing up.
Some VBox replacement
Move GTKExtensions to Pinta.Core
Revert "Move GTKExtensions to Pinta.Core"

This reverts commit fce3ca7f34e4d620f9340c3c9536c434486eb1c2.
Revert "Move GTKExtensions to Pinta.Core"

This reverts commit fce3ca7f34e4d620f9340c3c9536c434486eb1c2.
Some render hacking
Holy crap; Widgets now compiles!
De-Steticise the Effects subproj
PintaEffects is compiling

...Again.
First pass at Pinta SubProj; remove Ruler refs
More Ruler pogroms
Item activated events updated
Some  vbox/contentarea swithcing