Add french layout variant oss to simple engine

Review URL: https://codereview.appspot.com/14115044
Patch from Julien Humbert <julroy67@gmail.com>.
Replace datadir/man with mandir.

BUG=http://code.google.com/p/ibus/issues/detail?id=1660
TEST=make install

Review URL: https://codereview.appspot.com/14119043
Implement lookup-table-orientation in ibus-ui-gtk3.

BUG=RH#1012781
TEST=ui/gtk3/ibus-ui-gtk3

Review URL: https://codereview.appspot.com/14198043
Always save the content-type cache for gnome-shell password.

GDBusProxy updates the cache immediatelly with the first call only
and has to save the next call in the cache by manual.

BUG=RH#1013948
TEST=password on gnome-shell 3.10.

Review URL: https://codereview.appspot.com/14196043
Merge github.com:ibus/ibus

Conflicts:
	engine/simple.xml.in