Updated video controller, after last exercise first exercise is played, exercise description divs are updated as well

Updated video controller witha function to play next video, after 7 videos it will come back to first video of that day, updated video.html to show divs according to the current exercise type

Updated app.js to update url to send two statusparams, updated controllers.js to hold exercise name, updated tab-plan to modify the url to send exercise id

Updated app.js with url update to pass two status params, updated controller.js to hold exercise name, updated tab-pan.html to modify url to send exercise id

Updated app.js to pass two stateparams, updated tab.plan to modify url hit with exercise id, updated controller.js to hold exercise name