gi: accept NULL character in gint8 array
gdk3: fix a typo

bcakword ->
backword
 ^
poppler: fix a typo

[gdk_pixbuf_dir, "gdk_pibuf2"] ->
[gdk_pixbuf_dir, "gdk_pixbuf2"]
                        ^
Support for set_height in pango layout
Support for is_ellipsized? in pango layout
Merge pull request #210 from Vasfed/master

Support for set_height and is_ellipsized in pango layout

Patch by Vasily Fedoseyev. Thanks!!!
pango: use "-" for word separator in file name
pango: remove a trailing space
pango: remove trailing spaces
pango: use version check instead of function availability check
pango: add test for Layout#height and #height=
pango: use version check instead of function availability check

Because we can remove the ifdef easily after we increase required
Pango version. Less ifdef is better because ifdef reduces
maintainability.
pango: remove needless function check

pango_layout_get_font_description() is always available because we
require Pango 1.14 or later. The fucntion was appeared since 1.8.
pango: remove needless "is_"

Ruby uses "XXX?" style instead of "is_XXX?".
poppler: backport event sub classes from gtk2/

Github: #180
Merge pull request #211 from cosmo0920/poppler-subclass-backport

poppler: backport event sub classes from gtk2/

Patch by cosmo. Thanks!!!
poppler: revert exporting PopplerAction convert functions on Windows

Because nobody uses them for now. We will export them when someone
request them.
poppler: fix argument name

It is an action not an event.
poppler: revert conversion function name rules

rval2XXX ->
XXX_from_ruby_object

XXX2rval ->
ruby_object_from_XXX

Because XXX_from_YYY naming rules are used in Ruby/Poppler.
poppler: remove "event" word and use "action" instead

Because they are "action" not "event".