Added CURLOPT_LOCALPORT and CURLOPT_LOCALPORTRANGE to libcurl. Set with the

curl tool with --local-port. Plain and simply set the range of ports to bind
the local end of connections to. Implemented on to popular demand.

Not extensively tested. Please let me know how it works.

RELEASE-NOTES

@@ -5,12 +5,14 @@ Curl and libcurl 7.15.2
  Available command line options:           109
  Available curl_easy_setopt() options:     125
  Number of public functions in libcurl:    46
- Amount of public web site mirrors:        28
+ Amount of public web site mirrors:        30
  Number of known libcurl bindings:         32
  Number of contributors:                   474
 
 This release includes the following changes:
 
+ o CURLOPT_LOCALPORT and CURLOPT_LOCALPORTRANGE (--local-port) added
+ o Dropped support for the LPRT ftp command
  o Gopher is now officially abandoned as a protocol (lib)curl tries to support.
  o curl_global_init() and curl_global_cleanup() are now using a refcount so
    that it is now legal to call them multiple times. See updated info for
@@ -22,7 +24,7 @@ This release includes the following bugfixes:
    redirect and thus prevents a weird error that would occur if a FTP
    connection died on an attempted re-use
  o Try PASV after failing to connect to the port the EPSV response contained
- o -P [IP] with ipv6-enabled curl
+ o -P [IP] with non-local address with ipv6-enabled curl
  o -P [hostname] with ipv6-disabled curl
  o libcurl.m4 was updated
  o configure no longer warns if the current path contains a space