Fixed, Texture Browser Form: well, I broke "Tab" key functionality again (in previous commit)...
Maintenance: changed curly braces style to match DB2 one (hopefully not breaking anything in the process...).
Maintenance: changed private method names casing to match DB2 one.
UDMF: Reset texture offsets action now works on floors and ceilings.
Vertices mode: when a linedef is within Split Linedefs range, it's now highlighted using Info line color.