Spreadsheet scraper: Handle many-to-many lookups, passed as a list of names.

Fix a broken doc reference

Spreadsheet scraper: Allow skipping the guess-address-from-all-fields behavior.

NewsItemForm: for item_date and pub_date, handle anything that datetutil.parser can parse.

Handle single-value Lookup attributes. (We don't yet handle many-to-many

trivial doc tweaks

Merge pull request #33 from openrural/admin_login_fix

Fixes 500 error in admin login when login name doesn't exist

Merge pull request #32 from openrural/alerts-user-authentication

Fix check for user authentication

typo

Block import: Don't blow up if an importer subclass returns ints instead of strings for left_from, left_to, etc

doc tweak

Bumping master branch version to 1.3dev; moving release notes to history.rst

Fix rst formatting of README in release packages; update version number in docs