Changed path for the pbtree module from 'libs' to 'lib', so as to stop the error 'ImportError: No module named libs.pbtree'
Corrected the order of the AWS access_key and access_secret parameters. They now match the order defined in BotoMap's __init__ method
Renamed bin/read to bin/index_lookup_local and bin/remote_read to bin/index_lookup_remote, since that gives a much clearer idea of what they do
Merge pull request #14 from oskarpearson/master

Correct 'libs' path to 'lib', and correct the commented-out parameter order in object initialisation. Renamed bin files to more appropriately reflect their purpose.