Added the start of being able to seek through songs
Added an observer for the current track, and log out the time in the current track time as the song progresses.
Added getTrackDetails(), which grabs a dictionary of things that the streaming player keeps about the track
Removed duplicate code
Merge branch 'develop' of https://github.com/Barney-365-Fall-2104/FriendRadioNew into develop

Conflicts:
	FriendRadioNew/Spotify.swift
	FriendRadioNew/ViewController.swift