Fixed typos in normal_form() and canonical_form() when sense is +1.
Make canonical forms around one site and use those functions for the rest.
Removed useless debug statements
Added tests for linear forms
prop_left/right admit uninitialized matrices on the left or on the right
Simplified LinearForm to use a single array
Added method norm2() to LinearForm
Added a simplified version of the simplify() algorithm that works with many vectors in open boundary conditions.
Register the simplification routine with the headers.
Added tests for state simplifications using LinearForm
Fixed simplify_obc()
Finished the tests for simplify_obc()
Removed debug statements.
Added random product MPS test states