Issue: WCK-54 repair mock engine
Merge pull request #5 from F483/master

Issue: WCK-54 repair mock engine
Merge branch 'master' of github.com:chromaway/chromawallet-proto

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.