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
```

>If you want I can write a separate script that will preprocess the data files and make two files: one for the hash and one for the array

The more pre-processing the better. I'd like to simplify the Goodie's Perl as much as possible and have it do as little work as possible in order to get the data setup and usable.

>How to slurp to a hash?

It's the same as slurping into an array: `my %countries = share('currency.txt')->slurp;` (from currency_in goodie)

The only difference is that odd rows of the input become keys in the hash, and even rows become their values. The file could also simply be slurped as an array and then depending on how it's organized, split into a hash.

>A possible idea about the design is to print a calendar, however it would take too much space for some common names. As you found, Maria has name days spread over a year. 
Another idea is to keep the existing output format, but highlight the country names with bold or italic typeface. What is your opinion about it?

The latter is probably better -- let's see what the designers come up with :)