[ZEPPELIN-2452] block update paragraph event on revision mode#2288

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cloverhearts wants to merge 2 commits intoapache:masterfrom

cloverhearts:fix/invalidupdateonrevision

Commits on Apr 26, 2017

block update paragraph event on revision mode
cloverhearts
committed

Commits on Apr 28, 2017

add block event on revision mode
cloverhearts
committed