make reddit class smaller by moving unix time stamp to separate class
create separate class for making web requests
Merge pull request #40 from raytheon/master

move code out of reddit class (unix time stamp / web requests)
added get top/hot posts for a given subreddit
Merge branch 'master' of https://github.com/SirCmpwn/RedditSharp into adding_get_top/hot_posts
really fixed merge conflicts this time
Merge branch 'adding_get_top/hot_posts' of https://github.com/brettgodoy/RedditSharp into adding_get_top/hot_posts