Variable terms in REST URLs (version,iteration,iter,i)

There are too many different terms to precede the same context, for example

• project, proj, p

• iteration, iter, i, version

and so on. We should standardise all our terms so that at any time the user does not have to clarify what piece of information is expected.
https://zanata.ci.cloudbees.com/job/zanata-api-site/site/zanata-common-api/rest-api-docs/resource_StatisticsResource.html