Add expected use of isPrime
Add isPrime as a function
Add .gitignore
Fix wrong printf syntax
Complete isPrime function
Fix c89 inline var declaration error
Test isPrime with value from 2 to 25
Merge branch 'check-prime' of git://github.com/CMPITG/check-prime into CMPITG-check-prime

Conflicts:
	main.c
Merge branch 'CMPITG-check-prime'