Update simple.xml to enable layout_variant tag.

Review URL: https://codereview.appspot.com/6820129
Add cedilla_compose_seqs table for pt_BR compose keys.

Review URL: https://codereview.appspot.com/6814119
Remove gnome-icon-theme-legacy dependency.

gtk_image_set_from_icon_name() accesses the icon_name only but
gtk_image_set_from_stock() can fallback the stock name to the real name.
E.g. "gtk-about.png" is the symlink of "help-about.png" and
"gtk-about.png" is included in gnome-icon-theme-legacy package in Fedora.

Review URL: https://codereview.appspot.com/6846058
Fix xmllint errors.

Review URL: https://codereview.appspot.com/6842115
Fix red colour in rgb value in pango.vala

The red part of the rgb value was always passed as 0
to Pango.attr_foreground_new(r, g, b) and
Pango.attr_background_new(r, g, b).

BUG=

Review URL: https://codereview.appspot.com/6874050
Patch from Mike FABIAN <maiku.fabian@gmail.com>.
Add Ctrl+space customization.

Review URL: https://codereview.appspot.com/6822102
Change the default config to ibus-dconf.

Review URL: https://codereview.appspot.com/6849070
Hide some unused settings on ibus-setup.

Review URL: https://codereview.appspot.com/6873058
Improved the language of a couple of dialogs.

Also update all po files.

BUG=https://github.com/ibus/ibus/pull/4
TEST=manually

Review URL: https://codereview.appspot.com/6212048
Update translations.
Remove transfer container in ibus_engine_simple_add_table.

Review URL: https://codereview.appspot.com/6909049
Add fr(bepo) XKB engine.

BUG=http://code.google.com/p/ibus/issues/detail?id=1558

Review URL: https://codereview.appspot.com/6926044
Use Variant.unpack() instead of Variant.dup_strv().

Variant.dup_strv() returns a tuple in pygobject 3.2, e.g. (['<Control>space'], 1L), and a list in pygobject 3.4, e.g. ['<Control>space'] .

BUG=RH#887153

Review URL: https://codereview.appspot.com/6941051
Relase 1.5.0

BUG=None

Review URL: https://codereview.appspot.com/6906048