More advanced XML parsing

[mozharovsky]

Advanced XML features

• Read and parse arrays in the provided dictionary
• Recognize associated headers (*2)
• Encode associated headers (*3)
• Update CocoaPods and Demo project

*2

<tr>
    <td class='num'>1</td>
    <td class='achievments'>0</td>
    <td class='sum'>205</td>
</tr>

*3

let data = [
    XMLTag(header: "td", name: "class", value: "num") : 1,
    XMLTag(header: "td", name: "class", value: "achievments") : 0,
    XMLTag(header: "td", name: "class", value: "sum") : 205
]