Align rendered shapes to pixels, to avoid fuzzy textures and subpixel
gaps at unlucky screen sizes.
Reposition dropdown scrollbars correctly after dynamic size changes.
Fix mouse-drag selection of text in input controls.
Draw input selection background as a nicer size.
Support tooltips on lists.
Support 'enabled' on lists.
Fix crash when switching GUI pages in tick hander.
This was SVN commit r7649.
Ykkrosh
e88391e5d8