Starting a script to show groups of words studied today.

Currently it:
* Looks up cards reviewed today
* Figures out what notes those cards correspond to

Next up:
* Finish extracting out the words themselves from the notes
* Print out groups of 5-6 random words
* Throw in a grammar rule into each group to make it more interesting.
Ignore the .bundle directory.
Finished the initial implementation of words_reviewed_today.

Todo:
* Extract some things like model and field names into constants.
Extract quite a few constants into ... constants.
Extract a helper for printing a group of words.
Have the loader take care of requiring everything for the scripts.
Give the word grouping script a better name.
Merge branch 'words_reviewed_today'
Merge branch 'master' of github.com:fletcherm/count_known_words_in_anki