Merge pull request #2238 from Areloch/SDL_Install_Fixup

Makes it so the SDL directory files aren't copied during a template install.

Merge pull request #1938 from John3/add_strikeObject

added strikeObject lightning feature

Merge pull request #1938 from John3/add_strikeObject

added strikeObject lightning feature

Merge pull request #1885 from John3/updateLibVorbis135

update libvorbis 135

Merge pull request #1855 from John3/updateRecast151

Updated recast to 1.5.1

Merge pull request #1686 from GarageGames/development

Release 3.9

Merge pull request #1659 from rextimmy/linux_vizshader_fixes

Linux vix shader fixes

Merge pull request #1596 from Azaezel/FrameMallocMallet

removes FrameAllocatorMarker usage from GL side _fastTextureLoad

Merge pull request #1430 from Areloch/release-3.8

Release 3.8

Merge pull request #1407 from Areloch/Companion_PR_1398

Companion PR to 1398