Moving towards vector of FEElems
Added FEEdge3 to move towards elem_type
Added FEEdge2
Added FEEdge1
Added FEEdge 1 2 3 in constructor
Moved function pointers for phi
Removed pname and n_children from FEElemBase
Removed _name from FEElemBase
Number of el dofs taken from elem_type
Removed _order, will be replaced by _SolType
Progress towards elem_type
GeomEl no more VB in FEElemBase
Removed _n_geom_els
Merge from master
Common string for quad rule
Merge of QRule and Gauss almost over
Merged QRule into Gauss