Added R_EndFrame() to remove direct calls to GLimp_EndFrame() from client and UI.
Removed GL_LockArrays()/GL_UnlockArrays() calls in shadow volume rendering.
Changed parameters to UI_DrawMenuString(), UI_DrawString(), and variants.
Added UI_DrawPopupMessage() to simplify popup text drawing.
Changed Tactican Gunner's min prox range to 320.
Added bad_area fields to monster-fired prox mines with new g_newai.c->MarkProxArea() function.
Misc AI tweaks to handle prox bad_area fields.
Fixed flechettes clipping against player movement.
Cleaned up some old code from borderless window support.
Added UI changes for renaming cl_screen.c->SCR_AdjustFrom640() to SCR_ScaleCoords().
Syntax cleanup in some client particle code.
Simplified Zaero visor HUD scaling hack with strncmp().
Check for minumum length of saveshot name in SCR_DrawLoading().
Skip STX char before map title in dedicated console output.
Increased number of failed images/textures and walsizes to 1024 from 256.
Added one last modType() -> FS_ModType() change I forgot to commit.
