Moved arrow.[ch]pp to whiteboard directory.
updated gitignore
Switched from -Xlinker to -Wl, syntax to get linking working with
clang++'s -O4 LLVM-IR-based lto. Works wonderfully on Linux. Not
cross-platform ready.
Conflicts:
	SConstruct.py
Move theme.[ch]pp to display/
move tooltips.[ch]pp to display/
Updated gitignore, GOALS
Conflicts:
	GOALS.md
moved video.[ch]pp to display/
moved display.[ch]pp and diaglogs.[ch]pp to display/
moved windows_trey_notification.[ch]pp to display/
moved sound_music_track.[ch]pp to display/
moved desktup_util.[ch]pp to display/
moved floating_textbox.[ch]pp and font.[ch]pp to display/
move game_display.[ch]pp to display/
moved animated_game.cpp to display/
moved construct_dialog.[ch]pp to display/
move clipboard.[ch]pp to display/
moved cursor.[ch]pp to display/
moved portrait.[ch]pp and show_dialog.[ch]pp to display/
added gperftools linkflags to all builds in scons.
updated gitignore