package/matchbox-keyboard: bump to version 0.1.1

package/matchbox-keyboard: bump to version 0.1.1

- Switch license to LGPL-2.1 except applet/applet.c:
  http://git.yoctoproject.org/cgit/cgit.cgi/matchbox-keyboard/commit/?id=267595f2ef18e46c79f76057ad3c6fb40009ca4f
- Drop expat=yes (not needed since
  http://git.yoctoproject.org/cgit/cgit.cgi/matchbox-keyboard/commit/?id=4cf2976842612a0a278de4515715e4e4228c2987)
- xlib_libXrender is a mandatory dependency since
  https://git.yoctoproject.org/matchbox-keyboard/commit/?id=b38f24036cff3be6c2fbcf9ca9881803e69003ac
- libgtk3 is an optional dependency since
  http://git.yoctoproject.org/cgit/cgit.cgi/matchbox-keyboard/commit/?id=e4ab2198a5f9611027cb62e6ff41ee2593f07d4a

Signed-off-by: Fabrice Fontaine <[email protected]>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <[email protected]>