Database schema internationalization, step 8

Translate database schema (table and column names)
into English.

Step 8:
- translate the dns.dhcpprofile (old: dns.dhcpprofil)
    table and columns iddhcpprof (old: iddhcpprofil),
    name (old: nom) and text (old: texte)
- translate the dns.p_dhcpprofile (old: dns.dr_dhcpprofil)
    table and columns iddhcpprof (old: iddhcpprofil)
    and sort (old: tri)
- propagate the renaming of iddhcpprof column in dns.rr
    and dns.dhcprange tables
- translate trr(iddhcpprof) and trr(dhcpprof) accordingly
- translate iddhcpprof variables and check-iddhcpprof
    function
- translate some CGI form parameters and %...% holes
- fix a bug in dhcp range edition (CGI script dhcp)
    where profile sort order was not used, and the
    "No profile" was not translated from French