Merge pull request #77 from yotammanor/newmodel

yotam: ellie's pull request of layout improvment
yotam: added PartyAltname feature through models and admins.
yotam: Refactoring of TagSynonym, and related migrations.
yotam: Improved usabilty of kikartags admin pages
yotam: Created a custom TagManager with custom get and filter-styled functions to handle tag and tag synonyms correctly.
yotam: refactored set_proper_tag to get_proper_tag to fit naming convention. Also written drier.
yotam: added synonym suggestions to search bar, added tag synonym to search query, some code cleaning and formatting.
Merge branch 'newmodel' of https://github.com/hasadna/kikar-hamedina into newmodel