Add some checks on reaching the limit on the number command tokens and
increase the limit.  Fixes bugzilla item 163.

git-svn-id: svn://irodssvn.ucsd.edu/trunk@5514 ea137bd6-aa86-47b6-b90d-b101d9f19a90

Conflicts:
	iRODS/clients/icommands/src/imeta.c