Fixes the CareLink data processing to handle the updates recently made to the CareLink CSV format.
A description of the updates is included in this document.
Also add subType to smbgs processed from CareLink in accordance with the smbg data model.
Known issue: under fairly rare circumstances, duplicate linked smbgs will be produced. The circumstances that caused this are when a user is using a linked meter and sending all readings to the pump and then in addition uses the "Capture Event" menu in the pump to log the BG reading. A second linked reading will be produced in this situation, with a timestamp slightly different from the first (the timestamp of the event capture). Since this is a rare and bordering on pathological circumstance/user behavior, we have decided this known issue is acceptable.
Also worth noting: if a user modifies a reading retrieved from a linked meter, two records will be generated - one with subType linked and the second (with a different value) with subType manual.