ads.core.search will be renamed to ads.core.query in the future, so it ties in better with the astropy.astroquery API
ATM machine
s/search/query/
removed filter arg in query for place of database and properties args
added title arg for argument query, and switched to 'property' to be consistent with ads, even though it's a special python object
minor string edits
added tests for dev key check, properties parser and database parser
added deprecation note to ads.search docstring
import network on init
updated citation tree test
Merge pull request #4 from andycasey/future

ads.search is deprecated over ads.query, and you can search by title and properties now