Massive change to flag fields engine wide to make them all unsigned, avoiding an LLVM error regarding truncation of constant value 0x80000000

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2507 86ba831e-150c-0410-ab35-e06eaae15ed9
GCC and Clang warning fixes.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2508 86ba831e-150c-0410-ab35-e06eaae15ed9
Cleaned up the CMakeLists flags detection and added Clang support.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2509 86ba831e-150c-0410-ab35-e06eaae15ed9
Additional clang warning fixes.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2510 86ba831e-150c-0410-ab35-e06eaae15ed9
Changelog update: all entries new from 2/21 to present.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2511 86ba831e-150c-0410-ab35-e06eaae15ed9
Swap priority of exe and working directories when locating /base and /user.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2512 86ba831e-150c-0410-ab35-e06eaae15ed9
Dead code removal, thx to ConSiGno.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2513 86ba831e-150c-0410-ab35-e06eaae15ed9
action_menu_previous *cannot* exit editing of a text value in the menus, unfortunately, because its default binding conflicts with the ability to backspace existing value text.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2514 86ba831e-150c-0410-ab35-e06eaae15ed9
Changelog update

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2515 86ba831e-150c-0410-ab35-e06eaae15ed9
HALVideoDriver descendants must manage unset/set of primary buffer BEFORE setting the palette the first time, or SDLVideoDriver will suffer from a black screen at startup. V_Init is too late.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2516 86ba831e-150c-0410-ab35-e06eaae15ed9
Stupid bug in basepath determination.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2517 86ba831e-150c-0410-ab35-e06eaae15ed9
By user request, use /base/doom/eternity.cfg for all DOOM gamemodes by default.

git-svn-id: http://mancubus.net/svn/hosted/eternity/trunk@2518 86ba831e-150c-0410-ab35-e06eaae15ed9