don't sent instance update in remote in offline
test
Merge branch 'dev' of https://github.com/uProxy/uproxy into salomegeo-remote
Merge branch 'dev' of https://github.com/uProxy/uproxy into salomegeo-remote

Conflicts:
	src/generic_core/remote-instance.spec.ts
	src/generic_core/remote-instance.ts
test
Merge branch 'dev' of https://github.com/uProxy/uproxy into salomegeo-remote

Conflicts:
	src/generic_core/remote-instance.spec.ts
Merge pull request #725 from uProxy/salomegeo-remote

do not send consent to offline users.