Add Fedora 24+ and openSUSE 13.3+ to officially supported OSes

[cztomczak]

All supported Linuxes:

• Debian 8+
• Ubuntu 14.04+
• Fedora 24+
• openSUSE 13.3+

CEF Python builds using sysroot and thus supports the same OSes as Google Chrome:
https://support.google.com/chrome/a/answer/7100626?hl=en

I've just tested cefpython v66.0 on Fedora 25 and it works out of the box.

[cztomczak]

README updated in rev a5edec9.
The GitHub Release v66.0 support matrix updated as well.

[cztomczak]

Fedora 64-bit build dependencies:

bison make automake gcc gcc-c++ kernel-devel cdbs curl devscripts dpkg-dev elfutils fakeroot flex gcc-c++ git-core git-svn gperf alsa-lib-devel libavc1394 libavc1394-devel brlapi-devel bzip2-devel cairo-devel libcap-devel cups-devel libcurl-devel libdrm-devel elfutils-devel elfutils-libelf-devel libexif-devel libexif-gtk2-devel libexif-gtk3-devel libffi-devel GConf2-devel libpkgconf-devel GConf2 libpkgconf pkgconf mesa-libGL-devel glib2-devel mesa-libGLU-devel libgnome-keyring-devel gtk2-devel krb5-devel nspr-devel nss-devel pam-devel pciutils-devel pciutils-devel-static pulseaudio-libs-devel lksctp-tools-devel speech-dispatcher-devel libsqlite3x-devel sqlite-devel openssl-devel systemd-devel perl-libwww-perl libxslt-devel libXScrnSaver-devel libXt-devel libXtst-devel mesa-libGL-devel mesa-libGLU-devel libdrm-devel libX11-devel openbox patch perl pkgconfig python python-crypto python-devel python-psutil python-numpy python-opencv python-yaml rpm ruby subversion wdiff wget zip ninja-build gtkglext-devel gtk3-devel