This makes the code 64-bit clean (instead of assuming that a pointer
fits in a Int32) and simplifies the code.
Although the GTK doc doesn't say so, the C code shows the array is NULL
terminated, so we should be OK here.
Signed-off-by: Bertrand Lorentz <bertrand.lorentz@gmail.com>
There are no real code changes in this commit, just a lot of file
renaming and boilerplate additions.
A few .custom files are just removed, because the corresponding class in
GTK is gone, so they were not really used anymore.
Some files need to be re-indented, but that will be done in a separate
commit, so that git can track the renamed files correctly and not be
confused by all the changes.
