Minecraft Launcher wont launch.

Hi this is my first log I have created and I have had a really annoying issue for the past week that doesn't allow me to launch Minecraft. Whenever I hit the play button, it starts to launch Minecraft. Then, the launcher reappears and says "An unexpected issue has occurred and the game has crashed. We're sorry for the inconvenience". All of my drivers are updated and I have the latest version of Java.

Here is my crash report. -----------> http://pastebin.ubuntu.com/25189972/

Thank you for taking this into consideration.