commit with tested lib and adding gitignore
added signal for presence message of group add and remove
made yowsup logging off
fixed on receive location and vcard functions
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/Yowsup/connectionmanager.py
Merge remote-tracking branch 'origin/master'
added fromAttr and made attribute in treenode optional
fixed delete node and attribute_t error in connection manager
fixed fromAttribute in subject type
Merge remote-tracking branch 'origin/master'