Load Xft.dpi from ~/.Xdefaults as well.

Load Xft.dpi from ~/.Xdefaults as well.

Do this for consistency with other applications, some people just set
.Xdefaults but do not have xrdb to load it to screen. This works with
most of the systems, like Gtk and Qt, but not in Evas, so we get
different font sizes as they calculate based on DPI.

HOWEVER, and this may be a big thing, so RASTERMAN take a look, this
might impose a performance hit on window creation... remember that
every E17 popup/tooltip will hit this process of reading the file (if
exists) and then query X server (round trip).
    I'd rather make this a global resource, loaded just once for all
created windows, we can store the mtime to know when it changed and
invalidate the pointer... but as Raster did not keep the
XrmGetDatabase() result as global, I'm not doing it here either.

git-svn-id: svn+ssh://svn.enlightenment.org/var/svn/e/trunk/evas@48403 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33