Correct behavior of PhiDivergence.Conjugate at s = -Inf

1. mchi2 and hellinger no longer result in NaN
2. Include associated test cases

	modified:   @PhiDivergence/PhiDivergence.m
	modified:   TestPhi.m
Correct lower bound behavior on lambda depending on phi
Increase max number of problems to 300

	modified:   SolveLRLP.m