finite-elements

Reason

There is no reason to call the "higher level" app the "master"... better terminology is the "parent" app. We should change everything in the MultiApp system that mentions "master" including the documentation.

Design

See above.

Impact

May modify some documentation - but shouldn't do much more than that.

A point load can be mathematically represented as a distribution, e.g., a Dirac delta. It breaks the Gridap flow, since one cannot use Gauss quadratures and numerical integration (what we usually do in FEM) to compute the integral of f*v in that case.

I don't want to consider hacks, e.g., touch the vector entry in a particular node in which you want to put the force (assuming the force is on