GELFHandler is deprecated by graypy #6
Description
Hi,
There have been changes in graypy package. This is breaking flask-graylog throwing AttributeError: module 'graypy' has no attribute 'GELFHandler'
GELFHandler has been replaced with GELFUDPHandler & GELFTcpHandler being restructured into GELFTCPHandler