backend: Add category to handle org.apache.mina log
backend: Add category to handle org.apache.mina log

Adding category for org.apache.mina.* loggers to direct the output to
engine.log instead of standard output/server.log.

Change-Id: Ia031e1122aea527ed328e1e3ee6ff716053b3a1c
Acked-by: FirstName LastName <email>

Dhandapani/gluster-ovirt,anjalshireesh/gluster-ovirt-poc,yapengsong/ovirt-engine,yingyun001/ovirt-engine,eayun/ovirt-engine,zerodengxinchao/ovirt-engine,yapengsong/ovirt-engine,yapengsong/ovirt-engine,yingyun001/ovirt-engine,eayun/ovirt-engine,halober/ovirt-engine,Dhandapani/gluster-ovirt,yapengsong/ovirt-engine,OpenUniversity/ovirt-engine,yapengsong/ovirt-engine,OpenUniversity/ovirt-engine,OpenUniversity/ovirt-engine,halober/ovirt-engine,anjalshireesh/gluster-ovirt-poc,zerodengxinchao/ovirt-engine,zerodengxinchao/ovirt-engine,raksha-rao/gluster-ovirt,eayun/ovirt-engine,eayun/ovirt-engine,halober/ovirt-engine,derekhiggins/ovirt-engine,zerodengxinchao/ovirt-engine,derekhiggins/ovirt-engine,derekhiggins/ovirt-engine,raksha-rao/gluster-ovirt,yingyun001/ovirt-engine,walteryang47/ovirt-engine,walteryang47/ovirt-engine,Dhandapani/gluster-ovirt,walteryang47/ovirt-engine,raksha-rao/gluster-ovirt,raksha-rao/gluster-ovirt,halober/ovirt-engine,anjalshireesh/gluster-ovirt-poc,OpenUniversity/ovirt-engine,Dhandapani/gluster-ovirt,yingyun001/ovirt-engine,walteryang47/ovirt-engine,raksha-rao/gluster-ovirt,anjalshireesh/gluster-ovirt-poc,yingyun001/ovirt-engine,walteryang47/ovirt-engine,Dhandapani/gluster-ovirt,eayun/ovirt-engine,derekhiggins/ovirt-engine,zerodengxinchao/ovirt-engine,OpenUniversity/ovirt-engine,anjalshireesh/gluster-ovirt-poc