Major Changes to the "Getting Started" and the "Goodies" section

I followed the documentation to check which instructions were confusing and which steps were skipped in the process. Here are the major changes:

Installing DuckPAN is now at the beginning:
![screen shot 2014-02-10 at 8 54 28 am](https://f.cloud.github.com/assets/81969/2126014/806963d0-925b-11e3-8e8b-9c03271cdda3.png)

People might be new to Git:
![screen shot 2014-02-10 at 8 59 47 am](https://f.cloud.github.com/assets/81969/2126075/a181de0c-925c-11e3-829b-53e9dda9a6b0.png)

Add IRC in the documentation:
![irc](https://f.cloud.github.com/assets/81969/2126063/64a10f58-925c-11e3-9588-211e1dbd3971.png)

Made it clear that the easiest way is to download the VM:
![easiest](https://f.cloud.github.com/assets/81969/2126112/5637c9b0-925d-11e3-8ef2-1d97034f17f3.png)

RAR files need third-party software. Help them out:
![rar](https://f.cloud.github.com/assets/81969/2126123/890f4bce-925d-11e3-9c64-faf821210256.png)

Make it clear that the other options are more advanced:
![advanced](https://f.cloud.github.com/assets/81969/2126142/cca556d0-925d-11e3-9f0b-8d0756356893.png)

![advanced 2](https://f.cloud.github.com/assets/81969/2126149/f790724e-925d-11e3-9ecd-39204fc87b2a.png)

Make it clear that the Vagrant install option is not from DuckDuckGo:
![vagrant](https://f.cloud.github.com/assets/81969/2126161/24dea892-925e-11e3-89d0-a15140418d56.png)

Add resources for people who are new to Perl:
![goodie](https://f.cloud.github.com/assets/81969/2126175/55bebe5c-925e-11e3-9840-882419625177.png)

A "Try It" section:
![try](https://f.cloud.github.com/assets/81969/2126186/99f9893a-925e-11e3-8db2-ccf9e1fe39a7.png)

An introduction that says what DuckDuckHack is all about:
![intro](https://f.cloud.github.com/assets/81969/2126250/8b506402-925f-11e3-8ac0-f7b92bd34c08.png)