[#3002] obs.reliability changed from 1..1 to 0..1 in observation-spreadsheet.xml

git-svn-id: http://gforge.hl7.org/svn/fhir/trunk/build@3282 2f0db536-2c49-4257-a3fa-e771ed206c19
fix typo in XPath

git-svn-id: http://gforge.hl7.org/svn/fhir/trunk/build@3283 2f0db536-2c49-4257-a3fa-e771ed206c19