Improve efficiency of _Wikitext_pop_all_from_stack
Improve efficiency of _Wikitext_pop_all_from_stack

Use a for-loop instead of repeatedly calling ary_entry inside
a while-loop. The simple integer comparison will be faster
than the function call. (And in any case, the
_Wikitext_pop_from_stack function which is called here will
do an ary_entry call anyway; so what's really happening here
with this change is that we call ary_entry once for each item
instead of twice.)

Signed-off-by: Wincent Colaiuta <c76ac2e9cd86441713c7dfae92c451f3e6d17fdc@wincent.com>

wincent/wikitext,barnaclebarnes/wikitext,geni/wikitext,geni/wikitext,barnaclebarnes/wikitext,geni/wikitext,wincent/wikitext,barnaclebarnes/wikitext