Allow for multiple user agents to be specified

[dabeeeenster]

Ive found that sites are less likely to block you from scraping them if you vary the user agent you send in your scrape requests. Being able to set 1 agent is good, but being able to set 10 or 20 and have the application choose one at random when requesting a target url would help reduce the chances of being blocked.

You could throw down something like..

`var userAgentList = [

"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2227.1 Safari/537.36",
"Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko",
"Mozilla/5.0 (compatible, MSIE 11, Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko"

]`

function getRandomUserAgent() { return userAgentList[Math.floor(Math.random()*userAgentList.length)]; }

userAgent : getRandomUserAgent(arguments),