Add accelerator patch to gtk
openssl: Fix OpenSSL heartbeat bug.

For reference: http://www.openssl.org/news/secadv_20140407.txt
freetype: Updated to version 2.5.2
libpng: Updated to version 1.6.8
pixman: Updated to version 0.32.4
win-iconv: Changed download link to .tar.bz2
glib: Updated to version 2.39.92
atk: Updated to version 2.9.4
cairo: Updated to version 1.12.16
gdk-pixbuf: Updated to version 2.30.2
openssl: Updated to version 1.0.1g
Rest