Get rid of awkward project structure

[curranjm]

Our project has kind of an awkward setup (voiceapp311/mycity/mycity ...etc). We should try to clean that up and use the new name (BostonInfo).

[thiteixeira]

The current structure is as follows:

.
|-- ipython
`-- mycity
    |-- mycity
    |   |-- deploy_tools
    |   |-- intents
    |   |   `-- speech_constants
    |   |-- test
    |   |   |-- integration_tests
    |   |   |-- test_data
    |   |   `-- unit_tests
    |   `-- utilities
    |       `-- finder
    `-- platforms
        `-- amazon
            |-- lambda
            |   `-- custom
            `-- models

[thiteixeira]

#299 reduces the number of intent constant files