Design change

Changed font size of label
Merge branch "Update" - trial

gui.stetic
DEL button works again
gitignore
Added a .gitignore to prevent conflicts
Deleted NotImplementdExceptions
Merge branch 'Update'

Conflicts:
	CoolCalc.userprefs
	CoolCalc2/bin/Debug/CoolCalc2.exe
	CoolCalc2/bin/Debug/CoolCalc2.exe.mdb
	CoolCalc2/obj/x86/Debug/CoolCalc2.exe
	CoolCalc2/obj/x86/Debug/CoolCalc2.exe.mdb