Merge pull request #21 from yotammanor/newmodel

yotam: unfinished research in bug in fetchfeedproperties
Merge pull request #22 from yotammanor/newmodel

Jordan Valansi's add tag bug fix
yotam: fix Memory Error bug in insights. minor changes to settings.py and updateiscurrent
Merge branch 'newmodel' of https://github.com/hasadna/kikar-hamedina into newmodel