Your	repository	must	have	“interface” and	“implementation” branches.	One	containing	
the	 stubbed	 version	 of	 the	 functions	 while	 the	 other	 containing	 implementation.	 You	
must	also	show	ability	to	merge	these	branches	to	master	branch	for	releasing	the	code.
You	 must	 commit	 your	 code	 as	 frequently	 as	 possible.	 Each	 commit	 must	 include	
appropriate	comment	about	code	changes	that	you	are	pushing.