Address parser tests

[hkrishna]

Fixes pelias/pelias#40

Here's a few test cases that test the following

• basic address parsing (find street name, house number)
• find city and state information
• detect postal code

[orangejulius]

Woops. should have merged this only after address parser went out :/

[hkrishna]

Yeah, I saw this and assumed address parser was in production. Oh well

[orangejulius]

Soon my friend, soon