Documentation rework (#349)
* Documentation rework
* Apply fixes from StyleCI
* Documentation fixes
* Login as bot through web/cli API, allow using invite links in joinChannel, full invite links in importChatInvite and checkChatInvite, non-invite links in importChatInvite
* Apply fixes from StyleCI
* Logging fixes
* Build docs
* Add methods to modify start template, bugfix to logging and keyboard conversion
* Add TL documentator
* Document MTProto methods
* Documenting methods...
* 7% documented
* Bugfixes
* Update docs
* Update docs
* Simplify file management
* Implement automatic object conversion for media, and more awesome stuff
* Implement automatic object conversion for media, and more awesome stuff
* Implement event update handler and file upload/download callback
* Auto-detect mime type, duration, width and height of media
* Update docs
* Document new file functions
* Fix links
* Fix links
* Update bot.php to use event loop
* Implement webhook update handler and forking in main loop
* Build docs
* Better docs
* Fixes to secret chats
* Almost finished updating docs
* Bugfixes, implemented infinite loop for loop() method, almost finished docs
* Finish writing docs
* Add automatic documentation builder script
* Finished writing docs
