arguments, try to get the proxy from the environment.
* ksutil.h, ksutil.c (curl_err_to_gpg_err, curl_writer): Copy from
gpgkeys_curl.c.
* gpgkeys_oldhkp.c: Copy from gpgkeys_hkp.c.
gpgkeys_ldap.c. Print a string, but strip out any CRs.
* gpgkeys_finger.c (get_key), gpgkeys_hkp.c (get_key), gpgkeys_http.c
(get_key): Use it here when outputting key material to canonicalize
line endings.
gpgkeys_finger.c (main): Call timeout functions before performing an
action that could block for a long time.
* ksutil.h, ksutil.c: New. Right now just contains timeout functions.