Description of problem:  gnucash can't get transactions from
many citigroup credit cards because the OFX header version
was changed from 102 to 103

Version-Release number of selected component (if applicable):
libofx-0.8.3-7.i386

How reproducible:
every time.  The OFX header version is hard coded.

Steps to Reproduce:
1. Set up gnucash account so ~/.banking has citigroup user like the one given below
2. AQOFX_LOG_COMM=1 gnucash
3. Try to download transactions
  
Actual results:
/tmp/ofx.log has


Sending:
-------------------------------------
OFXHEADER:100

DATA:OFXSGML

VERSION:103

[...]



Received:
-------------------------------------
Can not find DTD Version Tree!



Expected results:

If you patch the version number to 102, the server responds as expected.

Additional info:

  user {
    int  uniqueId="85"
    char backendName="aqofxconnect"
    char userName="xxx"
    char userId="xxx"
    char customerId="xxx"
    char country="US"
    char bankCode="6642"
    int  lastSessionId="0"

    data {
      backend {
        char fid="24909"
        char org="Citigroup"
        char serverType="https"
        char serverAddr="https%3A%2F%2Fsecureofx2.bankhost.com%2Fciti%2Fcgi%2Dforte%2Fofx%5Frt?servicename%3Dofx%5Frt%26pagename%3Dofx"
        char flags="statements", "emptyBankId"
      } # backend
    } # data
  } # user