Presync

Integrated CactusBase thorns to use presync and rd/wr routines.

Thorn changed to use PreSync for applying BCs.

Updated macros to match changes in rdwr.pl

Changed to match renamed scheduling group

Implemented PreSync backward compatibility changes

Implemented PreSync backward compatibility changes

Update valid region on boundary update

Replaced aliased function for backward compatibility

Adding to boundary branch

Getting rid of Boundary2

Mostly adding read/write declarations

Fix to boundary

Added interface with PreSync routines

Driver change

Recent changes

Fixed interface with PreSync

Fixed backward compatibility with PreSync changes

Changes to match PreSync RegisterPhysicalBCs function

Removed extra print statements

Simplified Symmetry BCs to have a single function

Reduced cosmetic differences w.r.t. master

Changed Symmetry BCs to properly match types

Fix application of boundary reg.