FAQ: clarify who to mail about ECCN clarifications

  cryptography. When doing so, the Export Control Classification Number (ECCN)

  is used to identify the level of export control etc.

  ASF gives a good explanation at https://www.apache.org/dev/crypto.html

  Apache Software Foundation gives a good explanation of ECCNs at

  https://www.apache.org/dev/crypto.html

  We believe curl's number might be ECCN 5D002, another possibility is

  5D992. It seems necessary to write them, asking to confirm.

  5D992. It seems necessary to write them (the authority that administers ECCN

  numbers), asking to confirm.

  Comprehensible explanations of the meaning of such numbers and how to

  obtain them (resp.) are here

  Comprehensible explanations of the meaning of such numbers and how to obtain

  them (resp.) are here

  http://www.bis.doc.gov/licensing/exportingbasics.htm

  http://www.bis.doc.gov/licensing/do_i_needaneccn.html