GiNaC/ginac normal.cpp normal.h

[Christian Bauer]

Update of /home/cvs/GiNaC/ginac

Modified Files:
	normal.cpp normal.h 
Log Message:
- quo(), rem(), prem(), sprem() and decomp_rational() take a "const ex &"
  instead of a "const symbol &"
- get_symbol_stats(): the sym_desc_vec holds an ex instead of an (unsafe)
  "const symbol *"