We had to make a couple modifications to the Salesforce PHP files.  The line
numbers are below.  Each modification also starts with a comment prefixed with
'AccelerEyes MOD'.

Should we move to a newer version of the Salesforce PHP files these changes
will need to be made again if they have not yet been fixed internally.

SforceEnterpriseClient:73
  They were not instantiating the StdClass so threw errors depending on
  reporting level of PHP.

SforceBaseClient:95,126
  Preserve and restore HTTP_USER_AGENT in $_SERVER.  Salesforce was blindly
  overwriting this value and causing trouble with Magento's session
  validation.

