track sample dfr_data metadata
some refiling

document length python script to python/
AG/TU stoplist to inst/stoplist, throw out mysterious "long*.txt"
rectify data paths
rectify path to python script (no inst)
ignore data files
correct link syntax glitch
move JS_flexmix off into a stub testfile
dependencies fiddled
run-all with testthat check
java heap: the weenie solution

remove reload_mallet function which makes R cmd check unhappy and
probably doesn't work

add messaging about java heap to .onAttach

add information about the heap to modeling function docs
function link fixes
n_topics, n_top_words convention

instead of num_*

also corresponding docs changes

(and one more java heap note I missed in HEAD~2)
startup message test
abandon startup message test
working startup message
right param name on test-model_docs
more model testing....
startup message tweak
fix typo
fix wrong variable name; tests pass...