Set the charset for all emulab pages to utf-8 which is needed to
display foreign names correctly.  Also added three rows to table_regex:
tinytext_utf8, text_utf8, fulltext_utf8

Enhanced form_defs.php:

  - Add Support for Textarea

  - Add Support for a vertical list, for example see Category in
    submitpub.php

  - Add support for dumping the form values in plain text, used in the
    email I send to testbed-ops.

  - Change Error Reporting text for subfields such as in a list so
    they also include the text from the outer field, for example in
    newosid "ping" will become "OS Features, ping".  I needed this
    since some of my subfields didn't have labels and it seamed like
    the right thing to do.

  - Set #return_value to 1 in FormRenderCheckBox if it not already
    specified

  - In FormRenderSelect, if the #value is not in the list add it to
    the end.

  - Add support for "display" type, to just display some text in the
    table

  - Possibly some other little things I forgot about.

...