Development/gerrit/logerritworkflow

submitting patches

 * 1) make changes
 * 2) git add foo && git commit -m "bar"
 * 3) ./logerrit submit #instead of push
 * 4) ./logerrit nextchange # if the next patch does not depend on the first one
 * 5) make changes
 * 6)  git add foo && git commit -m "bar"
 * 7) ./logerrit submit

reviewing patches

 * 1) ./logerrit query
 * 2) ./logerrit checkout I339a01dbd4ea894be13293133b8dedbc55c2bbac
 * 3) ./logerrit review
 * 4) ./logerrit checkout I5705530ee4d5b93bc66ca23463098ac45f49323d