CMake: add _WIN32_WINNT MSVC define to match scons
Cycles Standalone: Tweak for d59f53f7b7da, use "closure color" as type name, to 100% match the OSL data type.
Fix T38809: regression, text cursor offset in number buttons

Use the same offset for all edit-buttons now.
Fix T38808: image opened with 'relative path', gets absolute path
UI: remove number specific button offset when selecting text
Fix T38819: Mark Seam misbehaves when accessed through spacebar search