--worked on CRA-12501, changed length/values for tax_rate from 9,8 to 10,8

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* CRM-12501: Financial Account Tax > 10 causes error
  http://issues.civicrm.org/jira/browse/CRM-12501
Merge pull request #642 from pradpnayak/CRM-12501

--worked on CRA-12501, changed length/values for tax_rate from 9,8 to 10...