Temporary fix for b/31652453: Upload image to replace existing image does not actually replace. This fix adds a suffix to the URL of the resource sent to the client in AssetItemRESTHandler to circumvent the cache.
Temporary fix for b/31652453: Upload image to replace existing image does not actually replace.
This fix adds a suffix to the URL of the resource sent to the client in AssetItemRESTHandler to circumvent the cache.

	Change on 2016/10/11 by davyrisso <davyrisso@google.com>

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=135873098

andela-angene/coursebuilder-core,andela-angene/coursebuilder-core,andela-angene/coursebuilder-core,andela-angene/coursebuilder-core