Server time

I added a method to request server time. Let me know what you think.
do you really think that it is good name ? ServerTime.find ??? what find ??? i think that better method name will be "get", or even: class ThetvdbApi::Server with method time.

Beside do you checked my other classes and do you know why i use find_path_with_paarams and find_path ? I use this class to remove duplication. Here it is useless code duplication. (Did you check code climate for it ?)