ex3: ex3 as per tutorial + Makefile
ex3: added calculation and float formatting
ex3: added string and character formatting
ex3: added some tab escape code
ex3: added some vertical tabs
ex3: added form-feed and alert tone when done
ex3: newline to carriage return after height in cm

Who gives their height in metric!?
ex3: added float precision to height in feet
ex3: break it! remove age from printf args
ex3: break it! don't init age value
ex3: break it! format a float with %d
ex3: fix it again finally
Merge remote-tracking branch 'origin/master'