creating unque userid for client identification
fixed issue while running locally
Merge pull request #45 from neillobo/hotfix/runLocal

hotfix for fixing running on local machine
refactored reload db script to use a wrapper
Merge pull request #46 from BorisVerk/master

refactored reload db script to use a wrapper
made error handling for drop tables non explicit
Merge pull request #47 from BorisVerk/master

made error handling for drop tables non explicit
reload uses new postgres wrapper
Merge pull request #48 from neillobo/feature/identification

reload uses new postgres wrapper
refactored database code to use the postgres.py wrapper

also typo fix
Merge pull request #49 from BorisVerk/master

refactored database code to use the postgres.py wrapper
database with postgres wrapper fix
Merge pull request #50 from neillobo/fix/dbPostgres

database with postgres wrapper fix
renamed data files
updated data files

*distances are calculated more accurately now
*metadata now conatins an image url
getting nearest beers gets all relationships now

This is how out relationship table looks like:
(a dot represents a pairing we have data for)
`
 123456
1 .....
2  ....
3   ...
4    ..
5     .
6
`

we were only looking at the horizontal for relationships. now we check
the horizontal as well as the vertical
Merge pull request #51 from BorisVerk/master

updated data files
modified databse reloading script to reflect changes in files
added the postgres python wrapper as a requirement
updated travis to insert values into db before running tests