[FIX] handling of multiline strings during qweb translation

Javascript regexps don't provide a DOTALL flag (to make `.` match
newlines) so have to replace `.` by `[\s\S]` hack, as *that* will
match newlines as well as all other characters.

Note: the `m` flag has a different meaning, it makes `^` and `$` match
      the start and end of lines rather than the start and end of the
      string itself.

bzr revid: xmo@openerp.com-20130516105908-exgtwwf785hrmedo

addons/web/static/src/js/coresetup.js

@@ -562,7 +562,7 @@ instance.web.qweb.preprocess_node = function() {
             if (translation && translation.value === 'off') {
                 return;
             }
-            var match = /^(\s*)(.+?)(\s*)$/.exec(this.node.data);
+            var match = /^(\s*)([\s\S]+?)(\s*)$/.exec(this.node.data);
             if (match) {
                 this.node.data = match[1] + instance.web._t(match[2]) + match[3];
             }