TRUE/FALSE --> true/false in src #666

Job	Run time
Windows MSVC CMake REL TS	11m 41s
Windows MSVC CMake DBG TS	6m 7s
Windows MSVC CMake REL	16m 27s
Windows MSVC CMake DBG	21m 55s
Ubuntu gcc CMake REL TS	4m 52s
Ubuntu gcc CMake DBG TS	3m 42s
Ubuntu gcc CMake REL	10m 8s
Ubuntu gcc CMake DBG	12m 2s
Ubuntu gcc Autotools REL TS	7m 39s
Ubuntu gcc Autotools DBG TS	7m 4s
Ubuntu gcc Autotools REL	15m 40s
Ubuntu gcc Autotools DBG	17m 2s
Ubuntu gcc Autotools parallel (build only) REL TS	6m 48s
Ubuntu gcc Autotools parallel (build only) DBG TS	6m 11s
Ubuntu gcc Autotools parallel (build only) REL	10m 20s
Ubuntu gcc Autotools parallel (build only) DBG	9m 32s
MacOS Clang CMake REL TS	3m 19s
MacOS Clang CMake DBG TS	2m 52s
MacOS Clang CMake REL	7m 33s
MacOS Clang CMake DBG	8m 14s
Ubuntu gcc Autotools v1.6 default API (build only) DBG	11m 27s
Ubuntu gcc Autotools v1.8 default API (build only) DBG	9m 45s
Ubuntu gcc Autotools v1.10 default API (build only) DBG	10m 32s
Ubuntu gcc Autotools v1.12 default API (build only) DBG	8m 24s
Ubuntu gcc Autotools v1.14 default API (build only) DBG	9m 10s
Ubuntu gcc Autotools no deprecated symbols (build only) DBG	9m 38s
Ubuntu gcc Autotools -Werror (build only) DBG	7m 40s
Ubuntu gcc Autotools -Werror (build only) REL	10m 51s
Ubuntu gcc Autotools parallel -Werror (build only) DBG	6m 0s
Ubuntu gcc Autotools parallel -Werror (build only) REL	6m 31s
	4h 39m 6s

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