Added: thing categories defined in Game Configurations can now be nested.
Changed, Thing Edit window: thing categories now use different icons.
Fixed: Thing Edit and Vertex edit windows had incorrect help links.
Fixed: Sound Propagation and Sound Environment modes had incorrect help links.
Documentation: updated "DECORATE keys" and "Things Settings" pages.
Removed "Sectors Brightness Mode" action, because the mode itself was removed long ago...
Documentation: updated "DECORATE keys", "Things Settings" and "Linedefs Settings" pages.
Changed, Thing Info panel: floor slopes are now taken into account when showing thing's Z position (same plane type limitations as above).
Changed, Thing Info panel: thing position is now shown as "X, Y, Z (abs. Z)".
Event lines: added event lines for polyobject anchor -> polyobject start spot pairs.
Fixed, Things mode: event lines were not drawn after finishing panning.
Changed, Thing Edit Form (UDMF): rearranged Action and Identification groups to match the rest of the Edit forms.
Changed: Classic Thing Edit form no longer has tabs.
Fixed, Visual mode, UDMF: sector geometry cache was not updated after using "Match Brightness" and "Change Brightness" actions on ceilings, so the changes made by them were not visible when using Classic modes in "View Ceiling Textures" mode.
Fixed, Visual mode, UDMF: "Match Brightness" and "Change Brightness" actions set brightness incorrectly in some cases.
Fixed: ACS script names gathering logic was unable to process relative #include and #import paths (like '#import "..\acs\qtilt.acs"').
Updated ZDoom_DECORATE.cfg.
Changed: Thing Browser Form is now resizeable.
Changed: made default Texture Browser Form size smalled, so it properly fits the screen when using low display resolution.
Fixed: PairedFloatControl had incorrect initial link icon.
Internal, AngleControl: rewritten AngleChanged event so it behaves like the rest of custom events.
Updated GZDB icon.
Cosmetic changes in Sector Info Panel and Thing Browser Control.
ArgumentInfo: fixed a crash when enum specified in a game configuration doesn't exist.
Updated Hexen and ZDoom linedef configs.
Updated ZDoom_DECORATE.cfg
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.
Changed, Thing Edit form: multi-select mode is now disabled when only one thing is edited.
Internal: different implementation of MultiSelectTreeview (http://sourceforge.net/projects/mstreeview/) is now used.
Visual mode: "Lower/Raise Floor/Ceiling" actions now work on surfaces with sector slopes.
Cosmetic: numeric textboxes, which support relative values, now have differently colored text and a tooltip.
Internal: renamed Sector.CeilingSlopeOffset to Sector.CeilSlopeOffset, Sector.CeilingSlope to Sector.CeilSlope to match their names with similar sector properties.
Map Analysis, internal: some ErrorCheckers and ErrorResult had inconsistent namespaces.
Thing Edit forms, internal: optimized missing flags check a bit.
Game Configurations: moved "thingflagscompare" from Game to Map format blocks. "Check stuck things" check now works properly in Doom/Boom game configurations.
Map Analysis: fixed a possible crash during "Check texture alignment" check.
Map Analysis: ResultStuckThingInLine now highlights both thing and line.
Map Analysis: ResultStuckThingInThing now highlights both things and allows to delete any of them.
Internal, Map Analysis: rewritten parts of "Check stuck things" class.
Internal, Map Analysis: changed the way processed stuff is stored in "Check texture alignment" class.
Internal: changed CurrentDomainOnUnhandledException, so ExceptionDialog with proper info shows up even if adding exception to the Event Log failed.
Internal: changed format, in which thingflagscompare info is stored.
Thing Edit form, UDMF: default value of pitch and roll angle controls is now up.
Angle control: direction line is not displayed when showing mixed values.
Thing Edit Form, UDMF: added controls for setting pitch, roll, scale, render style, fill color, alpha, health and score.
Visual mode, UDMF: UDMF scale is now applied when rendering sprites.
Added Thing Statistics form (Edit -> View Thing Types...), which shows all loaded thing types with some additional info.
Visual mode: sprites with negative ScaleX and positive ScaleY were not rendered properly.
Classic modes: display was not updated after loading a sprite.
Current testing engine change was not saved on closing the program when no other game configuration settings were changed.
