GiNaC/ginac basic.cpp container.pl ex.h indexed.cpp inifcns.cpp inifcns.h matrix.cpp utils.h

[Christian Bauer]

Update of /home/cvs/GiNaC/ginac

Modified Files:
	basic.cpp container.pl ex.h indexed.cpp inifcns.cpp inifcns.h 
	matrix.cpp utils.h 
Log Message:
- added lst::remove_first() and lst::remove_last()
- added symmetrize_cyclic()
- antisymmetrize() is slightly faster
- ensure_if_modifiable() clears the hash_calculated flag