change contract of cx_linked_list_remove()

add cx_linked_list_first() + cx_linked_list_prepend()

remove cxListLast (can be realized via cxListAt and index=size-1)

add cx_linked_list_{prev, remove, reverse}

(0) -300 -100 -30 -10 -4 +4 +10 +30 +100 +300 tip

mercurial