Revert "Beginning implementing of network check"

This reverts commit abb4d12a6305f662f421cbc9b5b16979c28d6d73.
fixed delete events that are old
Revert "Revert "Beginning implementing of network check""

This reverts commit 9a63faa63be7fb0767fb25f90c0dc7a151da5bbe.
Merge branch 'master' of https://github.com/OJ7/CampusEventsApp
Merge remote-tracking branch 'upstream/master'