new: added camera_fov()
new: added file checksums (file_crc32, file_md5, file_sha1)
new: added ui_enable() / ui_disable() (fwk_ui)
new: added window_color() (fwk_window)
new: added waypoints in demo/04-actor.c for upcoming AI pass
new: added navmesh test files from mikko mononen for upcoming NAV pass
brk: camera_teleport() signature
brk: deprecated mesh_create(), renamed mesh_upgrade() > mesh_update() (fwk_render)
brk: renamed fourcc > cc4; added cc8
brk: renamed FWK_C > FWK_IMPLEMENTATION directive
brk: renamed os_exec > app_exec, cpu_cores > app_cores, battery > app_battery, signals_install > signal_hooks
chg: reduced hello.c size (/)
chg: tweaked font sizes H1..H6 (fwk_font)
chg: updated roadmap
fix: added missing EASE_FLAGS for ease()
fix: fixed 04-actor.c not being compiled on tcc+linux
fix: fixed hello.c not being compiled as objc file (osx, MAKE.bat)
fix: normalized zero-length vectors (norm2/3/4)
fix: prevented profiler panel from overlapping other panels with PANEL_OPEN flag (fwk_profile)
fix: removed extra arg in array_pop_front()
fix: updated docs
fix: updated doom/anarch makefiles
lab: added 04-lod demo, 3rd_polychop.h (demos/)
lab: added experimental python bindings (demo_python.py, fwk.py)
lab: added behavior tree for upcoming demo
