reorganized tests to separate database and command methods
created GetTagsFromTextTweet command, passes tests
added more tests to GetTagsFromTextTweet command
created GetTextTweetsFromTag command and passes tests
finished most functionality, except for PicTweet
working on sql_db
got create_text_tweet working for sqldb
changed regular db to start with id=1 instead of 0
finished sqldb get_or_create_tag
finished sqldb get_tag
completede dbsql tt-tag methods and tests
completede dbsql pic_tweet methods and tests
completede dbsql pt-tag methods and tests
got command get tags from texttweets working