XFA -- Display text content

- display xhtml;
  - allow spaces in xhtml (xfa-spacerun:yes);
  - support column layout;
  - fix some border issues.

test/unit/clitests.json

@@ -42,6 +42,7 @@
     "writer_spec.js",
     "xfa_formcalc_spec.js",
     "xfa_parser_spec.js",
+    "xfa_tohtml_spec.js",
     "xml_spec.js"
   ]
 }

test/unit/xfa_parser_spec.js

@@ -330,9 +330,9 @@ describe("XFAParser", function () {
       );
       expect(p[$text]()).toEqual(
         [
-          "The first line of this paragraph is indented a half-inch.\n",
-          "Successive lines are not indented.\n",
-          "This is the last line of the paragraph.\n",
+          " The first line of this paragraph is indented a half-inch.\n",
+          " Successive lines are not indented.\n",
+          " This is the last line of the paragraph.\n ",
         ].join("")
       );
     });

test/unit/xfa_tohtml_spec.js

@@ -81,7 +81,9 @@ describe("XFAFactory", function () {
         fontSize: "7px",
         height: "22px",
         left: "2px",
+        padding: "1px 4px 2px 3px",
         position: "absolute",
+        textAlign: "left",
         top: "1px",
         transform: "rotate(-90deg)",
         transformOrigin: "top left",