patrick's first commits

-changed clustering algorithm
-changed file to write to excel file
-included states to the cities to better identify places
-changed the code to account for international addresses, which have to
be indexed differently
Merge pull request #1 from noahyonack/master

making more accurate geocode requests
changed gitignore and adding .txt file
still fumbling with gitignore
fixed merge conflicts
Commented each function
eliminated need to query Geocode API for each location cluster