Update MVConnect Docs for config files

[patrickp]

Need to update the MVConnect docs to have Non-jBASE specific instructions on how to configure items such as custom headers. The current MVConnect docs are jBASE specific.

[patrickp]

For reference - Assistance

[dbc]

; Set maxContentLength to the maximum size of HTTP request body content.
; The default max length is 131072 (128K).
; maxContentLength = 65536

; Additional HTTP headers to send to DBC handler.
; This is a comma-separated list of headers that will be passed to the DBC
; handler. These will be prefixed with "HTTP_" and converted to upper-case.
; extraHeaders = "X-Requested-With,X-Forwarded-For"
[root@zumlabD305 config]# cat dbc_options.conf