* bumped dependencies for metlog-cef and metlog-sentry
* added extra configuration for CEF over syslog and Sentry over UDP
* i've set a dummy host/port setup for the UdpSender in metlog
* added settings modification for metlog raven
* bumped metlog-py to 0.9.8 for better unicode error
* dropped lib/misc/tests/test_log:TestUnicodeError as metlog-py will
handle invalid unicode now
* changes the setup METLOG_CONF in lib/misc/tests/test_log
as it was being re-used from lib/settings_base which caused
invalid host configuration options to be pulled in.
* also moved the raven testcase out of the stdliblogging testcase
class and into it's own isolated test