Added small regexs to isNumber and isOperator
Removed unused throwed exception in UI
Fixed error in regex. Added another example
Fixed assert when creating MatrixZ3 (number must be gE 1 and Le 9)
Added restriction to forbid division and multiplication by one
Added one more puzzle
Merge branch 'master' of github.com:Beatgodes/MathemaGridZ3
Merge branch 'nc-misc1'

Conflicts:
	src/mathemagridz3/UI.form
	src/mathemagridz3/UI.java