Botskeleton

BOTTILITIES
* DEV
* use bottilities package (same author) for random_line, log setup, rate limiting
* remove those methods from this package
* store log object on botskeleton object
* store error records when errors happen
* upload_media should also store history items
* TweepErrors are a supertype of tweepy.RateLimitError, so we don't have to catch both
* remove some unused variables
* try to save whole error in TweetRecord

README change
* DEV/BUGFIX
* Also forgot that the call is math.ceil, not math.ceiling.

README change
* DEV/BUGFIX
* Forgot to import math in last commit, which is needed.

README change
* FEATURE
* Show clint progress bars on sleeps.
* Show progress on imported rate_limited calls.

* DEV
* Make README an RST file, which PyPI likes more, and GitHub is fine with.

Bugfixes
* FEATURE
* Add a history feature. TweetRecord objects store tweet id, tweet text, filename, and some
extra keys (if the caller has them).
* History updated on every send-type call, and saved/loaded from disk.
* send_with_media will save media_ids as well.
* History items will generate and store timestamps.
* Also add a nap function to sleep for some time. Based on delay passed into constructor.
* Caller can call to sleep between send calls.

* DEV
* Just import path from os so we don't have to do os.path one million times.

Bugfixes
* BUGFIXES
* Didn't pass owner_handle to send_direct_message correctly, so that didn't work. Fix that.
* Fix a typo'd call to send_dm_sos.
* Fix some missing spaces in send_dm_sos calls.
* Actual API send_direct_message needs user/text params - call that correctly.