Changes to use ABNF (RFC2234) syntax

Hi,

I just changed 
<http://greenbytes.de/tech/webdav/draft-reschke-webdav-search-latest.html> 
to use the ABNF syntax (defined in RFC2234).

Changes are in...

1) Definition of DASL header 
(<http://greenbytes.de/tech/webdav/draft-reschke-webdav-search-latest.html#rfc.section.3.2>) 
which now reads:

DASLHeader      = "DASL" ":" Coded-URL-List
Coded-URL-List  = Coded-URL *( "," Coded-URL )
; Coded-URL: see [RFC2518], Section 9.4.

and in

2) The "like" pattern syntax 
(<http://greenbytes.de/tech/webdav/draft-reschke-webdav-search-latest.html#rfc.section.5.15.1>) 
which now is:

pattern       = [wildcard] 0*( text [wildcard] )

wildcard      = exactlyone / zeroormore
text          = 1*( character / escapeseq )

exactlyone    = "_"
zeroormore    = "%"
escapechar    = "\"
escapeseq     = "\" ( exactlyone / zeroormore / escapechar )

; character: see [XML], section 2.2, minus wildcard / escapechar
character     = HTAB / LF / CR ; whitespace
character     =/ %x20-24 / %x26-5B / %x5D-5E / %x60-D7FF
character     =/ %xE000-FFFD / %x10000-10FFFF


Review and feedback appreciated,

Julian