Add field to Event: Metro Region (e.g. Brisbane)

[nrmay]

Notes:

code: _address_finder.html.erb

place.address_components[].types[]:

• example of Monash Uni (Caufield Campus)
• locality = Caulfield East (suburb)
• administrative_area_level_2 = Glen Eira City (local council)
• administrative_area_level_1 = Victoria (state)

[KathrynU]

This links in with issue #14 - could close #14 and act on this issue.