fixes5-0-1.txt entries for three pull requests

doc/fixes5-0-1.txt

@@ -69,6 +69,11 @@ thrown ball travel did not check for regions (pr #1595 by copperwater)
 remove deprecated option --version:paste
 the timeout for stasis wasn't decrementing while off-level; ensure the elapsed
 	 time is taken into consideration upon return to the level
+Some optimizations of the glyph lookup - don't produce names for swallow
+	glyphs that can never appear to speed up the building of the
+	glyph index in populate_glyphname_hash_indices; build a sorted
+	index for loadsyms so that it can be searched with bsearch
+	(pr #1612 by chasonr)
 
 
 Platform- and/or Interface-Specific Fixes
@@ -184,7 +189,15 @@ MS-DOS: 16 color mode: Set the panning direction so CTRL-left and CTRL-right
 MS-DOS: makefont.lua was generating incorrect PSF fonts; there can be
 	multiple characters mapped to a single glyph, but the mappings
 	should be separated by FE bytes (pr #1581 by chasonr)
-MS-DOS: accept only single character font mappings (pr #1581 by chasonr) 
+MS-DOS: accept only single character font mappings (pr #1581 by chasonr)
+MS-DOS: add U+2299, U+2601 and U+2980 to the bundled fonts, so that all
+	symbols specified in the Extended2 symbol set are available;
+	also,a few more directives are added to the files, so that
+	FontForge can load them and display their contents
+	(pr #1610 by chasonr)
+MS-DOS: The 16 color mode loads the font specified in font_map, and accepts
+	it only if its size is 8 by 16 pixels; avoid a null dereference
+	if the font is not found (pr #1611 by chasonr)
 musl: musl libc does not have __sighandler_t so don't use it in the
 	macro definition for SIG_RET_TYPE with musl
 WASM: resolve some build failures in 'make CROSS_TO_WASM=1'