Merge pull request #1250 from a-gave/lime-docs

lime-docs: adapt to the new website

Merge pull request #1240 from a-gave/minor_fixes

wireless: add missing apup to the list of available modes

lime-system: config use utils.file_exists

ci: build packages for the upcoming_branch

lime-system: update add-lime-repos

lime-report: adapt to get packagelist via ubus

Merge pull request #1236 from ilario/lime-proto-wan-vlan3

lime-example: disable lime-hwd-openwrt-wan on custom WAN configuration

Merge pull request #1245 from a-gave/packages/bmx6

lime-system: depends on rpcd-mod-rpcsys

utils: better check if pkg is installed

ubus-lime-metrics: better check if babeld is installed

bmx6: purge package