Merge from vendor branch TNF:

Merge from vendor branch TNF:
Initial import of bmpanel2-2.1pre1:

Nice NETWM-compatible panel for X11. Features:

* Look'n'feel customization via themes.
* A bunch of widgets: desktop switcher, taskbar, launchbar, systray,
  clock, decor, empty.
* Pseudo-transparency support.
* Written in C with speed and clarity in mind.
* Small number of dependencies, briefly: glib2, cairo, pango,
  libX11.
* Small memory footprint (about 2-4 megabytes).
* Small executable (80 kilobytes at the moment).