apply cloudstorage.
cloudstorage path modified.
Add link to "solve problem"
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Merge branch 'master' of https://github.com/ghilbut/lgcodechallenger
disable reg link and highlight competition menu.
Bug fix of state observer
Bug fix "register"
Merge branch 'regist' of https://github.com/ghilbut/lgcodechallenger into regist

Conflicts:
	lgcc_media/templates/index.html