Update list of submitter neighborhoods to match the GIS data

[mjumbewu]

Ensure that South Boston Waterfront and Harbor Islands are there.

[mjumbewu]

For posterity, the differences between the GIS data and the Boston Neighborhoods page are:

Added:

• Harbor Islands
• Leather District
• Longwood
• South Boston Waterfront

Changed:

• Chinatown-Leather District to Chinatown
• Fenway-Kenmore to Fenway

Removed:

• Mid-Dorchester
• Wharf District