test my sync skillz

yeah... my skillz be all 1337 n schtuff. not.
adding sending location interval
second attempt at adding in location interval

manual merge with find group feature.
Merge remote-tracking branch 'origin/master'

Conflicts:
	fu.js
Revert "Merge remote-tracking branch 'origin/master'"

This reverts commit b8c1dce6d961c21f502cd563c91c547323c2c319.