* Improved CommandHandler
Now you can pass list of commands instead of one command
* Added tests for list of commands
* Return backward compatibility
Renamed `commands` to `command` in CommandHandler
* Added test for a command not in the list
* Fixed py2 unicode command support in `CommandHandler`
* stripping token of whitespaces before starting bot
* Line feed
* CommandHandler checks if message is for this bot
* CommandHandler checks if message is for this bot
- Added tests
* Fixed tests in test_conversationHandler to work with new commandhandler structure
* type in conversationhandler test
* update sphinx source files to properly build latexpdf and improve html build
* fix docstrings and sphinx sources to get rid of warnings
* add telegram.contrib.rst
* initial commit for user_data
* add chat_data and use defaultdict
* fix chat_data copy-paste error
* add test for user_data and chat_data
* fix case where chat is None
* remove braces from import line
* Properly split and handle arguments in CommandHandler
* Update the docstring for pass_args in CommandHandler
* Properly split and handle arguments in StringCommandHandler
* initial commit for conversationhandler and example
* implement simple Promise for run_async/conversationhandler
* refactor Promise._done to done
* add handling for timed out Promises
* correctly handle promises with None results
* fix handling tuple states
* update comments on example
* Added a first test on the ConversationHandler.
* Fixed a small typo.
* Yapf'd.
* add sphinx doc for conversation handler
* fix title for callbackqueryhandler sphinx docs
