Update master_changes.md #1454

Job	Run time
Analyse	38s
Build-macOS (4.14.1)	16m 2s
Hygiene	25s
Cygwin	2m 14s
Build-Linux (4.08.1)	2m 1s
Build-Linux (4.09.1)	1m 52s
Test-macOS (4.14.1)	1h 2m 37s
Build-Linux (4.10.2)	1m 48s
Build-Linux (4.11.2)	1m 59s
Build-Linux (4.12.1)	2m 34s
Build-Linux (4.13.1)	1m 53s
Build-Linux (5.0.0)	2m 13s
Build-Linux (5.1.0)	2m 18s
Build-Linux (4.14.1)	1m 52s
Test-Linux (4.14.1)	19m 35s
Cold-Linux	5m 1s
Solvers-Linux (z3, 4.14.1)	18m 58s
Upgrade-Linux (4.14.1)	1m 13s
Solvers-Linux (0install, 4.14.1)	7m 25s
Build-Windows (x86_64-pc-cygwin, x86_64-pc-cygwin, 4.14.1)	41m 3s
Build-Windows (i686-w64-mingw32, x86_64-pc-cygwin, 4.14.1)	45m 59s
Build-Windows (x86_64-w64-mingw32, x86_64-pc-cygwin, 4.14.1)	45m 55s
Build-Windows (i686-pc-windows, x86_64-pc-cygwin, 4.14.1)	49m 45s
Build-Windows (x86_64-pc-windows, x86_64-pc-cygwin, 4.14.1)	53m 2s
Upgrade-macOS (4.14.1)	2m 40s
Solvers-macOS (z3, 4.14.1)	22m 51s
Solvers-macOS (0install, 4.14.1)	13m 12s
	7h 7m 5s

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