websrv_lib: abort request on partial headers.
websrv_lib: abort request on partial headers.

While searching for the KTHML bug, noticed that partial http requests
would falsely be honoured. Instead, we must check if the full headers
(including the blank line) have been parsed before we dispatch the
request to the virtual handler class.

Conflicts:

	bin/service/websrv_lib.py


akretion/openerp-server,akretion/openerp-server,akretion/openerp-server