Actually set minimum libMesh as 1.0.0
Actually set minimum libMesh as 1.0.0

I think it was set awhile ago, but I must've overridden it with
a merge from the 0.5.0-release branch at some point. Code wouldn't
have compiled anyway, but it's better to figure that out at
configure time.

vikramvgarg/grins,vikramvgarg/grins,nicholasmalaya/grins,cahaynes/grins,cahaynes/grins,cahaynes/grins,nicholasmalaya/grins,vikramvgarg/grins,vikramvgarg/grins,nicholasmalaya/grins,vikramvgarg/grins,cahaynes/grins,cahaynes/grins,cahaynes/grins,nicholasmalaya/grins,vikramvgarg/grins