CON-1672 | Vertical expantion for 3rd parties

https://wikia-inc.atlassian.net/browse/CON-1672

## Changes
* GA
 * new vertical name - new variable - ```17```
 * additional categories - new variable - ```18```, names separated by ```,```
* Internal tracking
 * new vertical name - new variable - ```v```
 * additional categories - new variable - ```ac```, names separated by ```,```
* Quantcast - old category change to new vertical

## Remains unchanged
* Comscore - no changes - old categories aren't fully mapped to new verticals so it's not safe to take new vertical and map it into 3 cats.
* Ads - no changes - Ads targeting scheme is not ready for changing this now
* Krux - AdEng is working on Krux right now. They plan is to make Krux sites independent from categories so it's not required to update it.

@gabrys Please take a look if we won't break anything in Ads