Log Message:
Update quakespasm to 0.92.1.  Changes:

0.92.1
- Fixed large menu scale factors (was broken in 0.92.0).
- Fixed PAUSE key (was broken in 0.92.0).
- Updated some of the third-party libraries.

0.92.0
- SDL2 Game Controller support.
- Contrast support with new "contrast" cvar, behaving the same as MarkV.
  It may be a useful alternative to the existing gamma control for
  laptops in a bright environment, etc. Raising contrast gives less of a
  gray/washed out look than raising gamma, but at a disadvantage: colors
  near white get clipped to white.
- RMQ protocol (999) support, adapted from RMQEngine.
- New "-protocol x" command line option. Accepted values for 'x' are 15
  (NetQuake), 666 (FitzQuake, default), and 999 (RMQ).
- New "setpos" console command.
- New "vid_borderless" cvar for getting a borderless window.
- Increased MAX_MAP_LEAFS from 65535 to 70000 and MAX_LIGHTMAPS from 256
  to 512 in order to handle the oms3 map pack.
- Server edicts are now allocated using malloc instead of allocating on
  the hunk.
- gl_clear now defaults to 1.
- Fix items falling out of the world on oms3.bsp on SSE builds.
- Worked around an OSX 10.6 driver bug when using FSAA, which was
  leading to an unplayable HOM effect on the rest of the screen.
- Fix wrong trace endpoint from the tracepos console command.
- Updated some of the third-party libraries. Other fixes/clean-ups.

0.91.0
- Fix unwanted fog mode change upon video restart.
- Work around Intel 855 bug in status bar drawing with "r_oldwater 0"
  and "scr_sbaralpha 0".
- Fix an obscure GLSL bug where changing gamma would result in the
  screen turning to noise.
- Fix GLSL gamma causing the tiled screen border to turn white when
  "sizedown" is used.
- Fix an alias model VBO renderer bug where a model not precached
  during map start wouldn't be drawn.
- Fix the order of OpenGL context creation and window creation in SDL2
  video.
- Fix a calling convention issue in windows DPI awareness function
  pointers.
- Fix a random texture recoloring after video mode change.
- Fix a liquid turning to garbage after several video mode changes and
  "r_oldwater 0".
- Fix a wrong alpha-sorting bug introduced in 0.90.1.
- Fix "flush" command not reloading mdl's from disk (bug introduced in
  0.90.1).
- Prevent a possible buffer overflow in Cbuf_Execute (old Q1/Q2 bug).
- Prevent a possible vulnerability in MSG_ReadString (old Q1/Q2 bug).
- New cvars r_lavaalpha, r_slimealpha, r_telealpha for fine-tuning
  specific liquid opacities (from DirectQ/RMQEngine, non-archived,
  default to 0), and new worldspawn keys _wateralpha, _lavaalpha,
  _slimealpha, _telealpha, _skyfog (unique to Quakespasm, similar to
  the behaviour of the "fog" worldspawn key).
- GLSL gamma is now supported on older hardware without NPOT extension.
- New r_pos command to show player position.
- NaN detection in traceline with "developer 1" set now warns instead of
  errors.
- Update third-party libraries.
- Default max_edicts 8192 (was 2048) and no longer saved to config.cfg.
- Default heapsize 256 MB (was 64 MB).
- Default zone 4 MB (was 384 KB).
- Raised MAX_SFX to 1024 (was 512).

0.90.1
- Fix dynamic light artifact where changing lightmap are rendered one
  frame late (bug introduced in 0.90.0).
- Fix texture memory leak when changing video modes with SDL2.
- Fix rare incorrect mdl lighting on 64-bit builds. (details here.)
- Fix fullbrights turning black after "kill" command (bug introduced in
  0.90.0).
- Clear all fog values on map change to prevent colored fog carrying
  over to jam3_tronyn.bsp.
- Allow loading saves with } character in quoted strings, fixes issue
  with retrojam1_skacky.bsp.
- Fix viewmodel not lerping on extended-limit maps.
- Fix crash on out-of-bounds skin number.
- Use multithreaded OpenGL on OS X for better performance.
- New, faster mdl renderer using GLSL. Disable with "-noglslalias".
- New gamma correction implementation using GLSL. Fixes all known gamma
  issues (affecting the full display, persisting after quitting, or
  darkening the screen on OS X). Disable with "-noglslgamma".
- Use high-quality water by default (r_oldwater 0).
- Shadows use stencil buffer to avoid overlapping artifacts (from MarkV.)
- r_noshadow_list cvar added (from MarkV.)
- Support pausing demo playback with the "pause" command.
- Autocompletion for "game", "record", "playdemo".
- Experimental windowed fullscreen mode available with
  vid_desktopfullscreen 1 (only in SDL2 builds, takes effect upon
  entering fullscreen mode the next time.)
- Silence "exceeded standard limit" messages unless developer cvar is
  >= 1.
- Some spam moved from developer 1 to 2: "can't find tga/lit/ent",
  "trying to load ent", "bad chunk length", "meshing",
  "PR_AlocStringSlots: realloc'ing"
- Clean up IDE project files to build on fresh systems.
- Update 3rd-party libraries.