PaintingDAO va validate
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Đã validate được 1 student và competition
interface show exhibitions
Merge remote-tracking branch 'origin/HieuNN'
jquery
bug
fixed paiting
show competiton
competitons complete
Chốt task Painting
list exhibitions
merge Dung
123
Merge branch 'master' of https://github.com/jin9691/IFA
Revert "list exhibitions"

This reverts commit 6551796978cfcef1a385d693f4a066a287096a12.