WAZO-1406: add Cisco 88xx

Reviewed-by: https://github.com/apps/wazo-zuul

WAZO-2216: fix Gigaset firmware URLs

Reviewed-by: https://github.com/apps/wazo-zuul

Why: the phone interface asks for the password when the user has one set
to access the phone book and DND, forwards, etc.

Cisco ATA191: fix template proxy

Reviewed-by: https://github.com/apps/wazo-zuul

WAZO-2040: add Yealink W90 to v85 plugin

Reviewed-by: https://github.com/apps/wazo-zuul

Yealink v83 W80 -Fix firmware and download link

Reviewed-by: https://github.com/apps/wazo-zuul

Yealink v83 W60 - Fix firmware and download link

Reviewed-by: https://github.com/apps/wazo-zuul

yealink-v83: fix NAT for W60B

Reviewed-by: https://github.com/apps/wazo-zuul

Gigaset: fix hex vlan id

Reviewed-by: https://github.com/apps/wazo-zuul

WAZO-2014: Add Cisco 68xx series