Merge pull request #136 from eumario/master

WebKitGtk2

Patch by eumario. Thanks!!!
Add webkit-gtk2
Add missing license header
Add missing files
webkit-gtk2: fix indent

We use 2 spaces not tab for indent.
webkit-gtk2: add missing license header
webkit-gtk2: use " for string literal instead of '
webkit-gtk2: don't use abbreviated name
gi: Loader supports version
webkit-gtk2: use GI::Loader's option for specifying version
webkit-gtk2: add a missing space
Add 1.2.4 entry
1.2.4 -> 1.2.5
Add Ruby/WebKitGtk2 to README
Fix typos in Improvements
goocanvas-gi: add sample simple-demo
Merge pull request #137 from myokoym/goocanvas-gi-add-sample-simple-demo

goocanvas-gi: add sample simple-demo

Patch by Masafumi Yokoyama. Thanks!!!
goocanvas: replace the existing sample by GI based sample
goocanvas: fold a long line
goocanvas: remove a needless new line