Add in pathinfo for smokeping
Merge branch 'nf-smokeping' of https://github.com/inex/IXP-Manager into nf-smokeping
[DB] Add URL for Smokeping to the database (per IXP)
[DB] Add new field to switchport to identify LAG ports
WIP
Merge branch 'master' into nf-smokeping

Conflicts:
	CHANGELOG.md
	application/Proxies/__CG__EntitiesSwitchPort.php
[NF] Make Smokeping graphs available within IXP Manager