Use dedicated etter.mdns file for mdns_spoof plugin to avoid
warnings printed out by mdns_spoof plugin when parsing the etter.dns
file and meets record types not supported by mdns_spoof plugin but
supported by dns_spoof plugin.
fix some typos in etter.dns and etter.mdns
Add POST-data content printing to ec_http

- This comes care of AntonioCollarino
Stop exiting because sslstrip didn't init.
Relocate pcre_compile, change error handling

- Make failures to compile PCRE non-fatal

- Fix likely memory leak caused by calling pcre_compile but never
  pcre_free:
    -Move pcre_compile to sslstrip_init, and make its return global since
     we should only compile the regex once.
    - Ensure that compiled PCRE is freed when plugin is unloaded.
Relocate regcomp, change error handling

- Make failure of regcomp(&find_cookie_re) non-fatal

- Fix another likely memory leak, this time from having called regcomp
  without regfree:
    - Move regcomp to sslstrip_init, making find_cookie_re global
    - Ensure that find_cookie_re is properly freed
Make failure of http_remove_redirect non-fatal
Fixes related to redir_command_*

- Ensure that forked command executed properly by checking exit status
  of process.

- Log command that failed to UI.
Switch to USER_MSG

- INSTANT_USER_MSG causes weird message doubling, for some reason.
Merge pull request #222 from koeppea/master

Fix for issue #216 "unknown records"
Merge pull request #224 from justfalter/log_post_body

Add POST-data content printing to ec_http
Merge pull request #225 from justfalter/sslstrip_proper_error_handling

Sslstrip proper error handling