Added plane side check for 3d mode hilight - fixes ability to select floors/ceilings from the wrong side
Clear selection default parameter was reversed
Merge branch 'master' of https://github.com/sirjuddington/SLADE.git
Set pad bytes for doom gfx posts to the first and last pixel values - these are apparently used to tolerate round-off overflows in the renderer
Merge branch 'master' of https://github.com/sirjuddington/SLADE.git
Added buttons to object edit panel to accept/cancel the edit (old apply button changed to 'preview')
'Preserve' Y panning when showing/hiding the object edit and shape draw panels
Fixed text entries not being set to modified when changes were saved
Added eye icon for preview button on object edit panel
Fixed some quirkiness with sector correction on merge, still has problems though
More fixes for sector building and architecture merging
Merge branch 'master' of https://github.com/sirjuddington/SLADE