Fix #347
this -> self (so javascript. many this. wOw)
Fixes: "AttributeError: 'ReaderThread' object has no attribute 'sendPong'"
Merge pull request #352 from waalt/js-fix

this -> self (so javascript. many this. wOw)
Merge pull request #348 from waalt/master

Fix #347
Merge remote-tracking branch 'tgalal/master'

Conflicts:
	src/Yowsup/connectionmanager.py