xotcl.c

- forward: new option for handling flags syntax "%-SOMEFLAG ?insert?%" The option checks the actual arguments, if they start with "-", it compares it with the provided name. If it matches, the flag is consumed and added at the provided position in the output list. If the flag does not match, but "insert" is given with the value of 1, then the flag is output as well. Note that the last feature is added for omitting double inserts.
- due to the new forward option, the following important
cases work now:
- adding/deleting/... per-object mixins for classes via
slot methods
C mixin -per-object add M
- adding per-object mixins for classes in short form
C mixin -per-object M

- added "what" argument to deprecated command to let the
user be more exact, what is actually deprecated