added Chat module
fix build
fix parser and disconnect
small refactor
edit version
add QBChatHelpers object
edit names of public methods for QBChatHelpers object
change params of connect method
added startAutoSendPresence method
edit sendMessage method
added custom parameters to message
add chat state notifications
edit name of message parameters
fix onMessage
add typing methods
add getLinkOnFile method
add join and leave methods for chat rooms
edit leave method
add MUC methods
Safari CORS fix for Strophe