get applications inside the moose directory. Closes #3289
Fully upwind Richards flux.

RichardsFullyUpwindFlux kernel has been added.
RichardsMaterial has been modified to provide necessary MaterialProperties
RichardsBorehole has a fully_upwind flag
RichardsPiecewiseLinearSink has a fully_upwind flag

Refs #3252.
Fully upwind Richards flux.

Adding doco for fully upwind Richards flux.

Refs #3252.
Fully upwind Richards flux.

Adding tests for fully upwind Richards flux.

Refs #3252.