simplify how we collect template suggestions. flip the order of candidates to most specific first, and fix template log. also add more candidates for functions.

add some initial code so cck field modules can participate in devel_generate. see #187599. patch by moshe weitzman.

you may now generate nodes only of specified types ...  content deletion is slower now but more proper. we only delete nodes from the specified types.

move template log to its own module called devel_themer. that module is still not very usable. stand by.

terms on nodes now respect their vocab's multiple property, and requried property ... empty nodequeue if that module is installed and we are killing content.