Main 화면 개발

Done:
 - 메인 화면 개발
 - 사용 안하는 Modal 창 소소코드 제거

Bug Fix:
 - Editor 화면으로 바로갈 때, tick이 초기화 되지 않는 현
Merge branch 'midi' into integration-v1
bit of player css adjustment
Merge branch 'midi' of https://github.com/VReality64/Pancake into midi
added use strict, wrapped data in function
something
pancake player를테마에 어울리게 css 수정, fontawesome 적용
wrapped composition in function
Player can now read pancake composition.
CompositionFile() function separated from composition class
playlist for bottom player added
removed unnecessary song load
added playlist.loadsong()
removed test player
moved pancake player html components onto index.html and its javascript components onto pancakeplayer.js
playlist function loadsong, loadplaylistonlogin, addtolist added
a basic setup for midi uploader to upload some initial db
Merge branch 'master' into integration-v1

Conflicts:
	app/styles/main.css
	app/styles/main.scss
Conflict 해결

main.css 에서 발생한 Conflict 해결
added socket on midi uploader