Submitting Name Days Goodie

**What does your Instant Answer do?**
Displays name days for a given name or date. See https://en.wikipedia.org/wiki/Name_day

**What problem does your Instant Answer solve (Why is it better than organic links)?**
The answer is shown instantly, without the need to peruse a website.

**What is the data source for your Instant Answer? (Provide a link if possible)**
https://en.wikipedia.org/wiki/Name_days_in_Poland

**Why did you choose this data source?**
It's available under an open-source license.

**Are there any other alternative (better) data sources?**
The original Instant Answer Idea mentions http://www.namedaycalendar.com/

**What are some example queries that trigger this Instant Answer?**
name day Maria
name days today
1 June name day

**Which communities will this Instant Answer be especially useful for? (gamers, book lovers, etc)**
Polish users.

**Is this Instant Answer connected to a DuckDuckHack [Instant Answer idea](https://duck.co/ideas)?**
https://duck.co/ideas/idea/4590/name-days

**Which existing Instant Answers will this one supercede/overlap with?**
None.

**Are you having any problems? Do you need our help with anything?**
None.

**Where did you hear about DuckDuckHack? (For first time contributors)**
From the DuckDuckGo main page.

**What does the Instant Answer look like? (Provide a screenshot for new or updated Instant Answers)**
![nameday](https://cloud.githubusercontent.com/assets/9570467/5007061/564e4f04-6a44-11e4-8c79-4ca2d31eacbe.png)

## Checklist
Please place an 'X' where appropriate.

```
[X] Added metadata and attribution information (https://duck.co/duckduckhack/metadata)
[X] Wrote test file and added to t/ directory (https://duck.co/duckduckhack/goodie_tests)
[X] Verified that instant answer adheres to design guidelines (https://duck.co/duckduckhack/design_styleguide)
[X] Verified that instant answer adheres to code styleguide (https://duck.co/duckduckhack/code_styleguide)
[] Tested cross-browser compatibility

    Please let us know which browsers/devices you've tested on:
    - Windows 8
        [] Google Chrome
        [X] Firefox
        [] Opera
        [] IE 10

    - Windows 7
        [] Google Chrome
        [] Firefox
        [] Opera
        [] IE 8
        [] IE 9
        [] IE 10

    - Windows XP
        [] IE 7
        [] IE 8

    - Mac OSX
        [] Google Chrome
        [] Firefox
        [] Opera
        [] Safari

    - iOS (iPhone)
        [] Safari Mobile
        [] Google Chrome
        [] Opera

    - iOS (iPad)
        [] Safari Mobile
        [] Google Chrome
        [] Opera

    - Android
        [] Firefox
        [] Native Browser
        [] Google Chrome
        [] Opera
```

Is this data going to change much? Would it be possible to pre-process all the files and generate a single file that can simply be slurped into the Goodie and used for a single lookup?

My aim is to try and minimize the amount of files being loaded to reduce the memory footprint of the Goodie and to avoid redoing unnecessary work each time we deploy the site (because these scripts will run every time we deloy...)