mod. v0.1.4-dev.  Use setuptools.
fix. _start_ts_ & _start_ts_ properties of UserMetric objects are deprecated.  Also supply project to get_users method.
add. method get_mw_user_id to return MW user ids from user names.
add. query module reference in api package init.
add. query parameter "is_user" to url.  This will replace the /user urlpath requests.
rm. view for user request.  This can be done more simply with the "is_user" param.
add. static method to MediaWikiUser that determines if there is a user for a given user name and project.
mod/rm. added validation and detection of "is_user" flag in output view.  Removed user_request view.
mod. added validation to process_metrics and made the flow of this worker process a bit clearer.
mod. provided a default for "project" in request meta.  Removed redundant RequestMeta typedef.