use anonymous files for here-documents if available and the document size exceeds pipe capacity; fixes to build if multibyte characters are unavailable; fix potential overflow with extrememly long $'...' strings; fix for readline redisplay highlighting with a zero-length region

examples/INDEX.html

@@ -417,6 +417,10 @@
     <td>./startup-files/Bashrc.bfox</td>
     <td>Sample Bourne Again SHell init file (Fox).</td>
   </tr>
+ <tr>
+    <td>./startup-files/fix-output</td>
+    <td>A pair of functions that will add a newline if the previous command doesn't end with one.</td>
+  </tr>
   <tr>
     <td>./startup-files/README</td>
     <td>README</td>