update test and getValues method to url values

[wellhausen]

@zalary, this potentially solves issue #14

• update the test body in add_item_spec.coffee
• update method calls with parenthesis for consistency in query_item.coffee
• utilize escape method to URL encode in helper.coffee

[wellhausen]

Ok, noted. Looking into this.

[wellhausen]

• Using encodeURIComponent() rather than escape() will encode everything with the exception of:
  ~!*()'

[alexkwolfe]

It is not necessary to URL encode JSON.

[wellhausen]

@alexkwolfe - so this change is not needed at all?

[alexkwolfe]

It's not clear to me what problem issue #14 is reporting...

[wellhausen]

Ok, I will talk with Zalary to get more details.

[cgrayson]

Noticed this old PR still hanging out, @ros3bud (or @zalary) - do you know if this is still a pending thing?

[wellhausen]

@cgrayson - it is still pending. Here is what needs to happen:

1. Send test leads to a flow which uses SuppressionList in LC which contains emails with odd characters. For example: Extraneous Content-Type header on GET request #1&2%3.
2. Once it's determined how the odd characters are handled, update the integration accordingly.

[wellhausen]

Going to close out this PR and add a new issue as this has taken a new shape.