HTMLMODE_FIRSTLINE was disabled in all HTML export modes. It seems to
have been used to add first line indent for paragraphs in Netscape
version 3 but all currently available export modes use CSS for that.

Signed-off-by: Tomas Chvatal <tchvatal@suse.cz>

Changes:
* Use SvHeaderTabListBox for the places list to get a nicer list
* Remove the "Default Directory" button: it's in the places
* Remove the Up and New Folder icons: look ugly beside the edit field
* Added proper icons for places

under dual licences MPLv1+/LGPLv3+

Authors:
  Martin Richard <martius@martiusweb.net>
  Julien Levesy <jlevesy@gmail.com>

excel import now uses the stored row height and we should go back to a
symetric default margin

Followup to 791f2768.

Seeing 791f2768 I've changed my mind,
some embedded \0 can be actually well hidden:
struct foo { const char txt[3]; };
const foos[] = { { "a" }, { "bb" }};
If somebody wants an embedded \0 in a string literal, they need to
say it explicitly by specifying the size.

This saves 1% of string allocation / destruction on startup.