Only differences are copyright and log message.

mnexec: getopt bugfix

getopt returns an 'int', so use change datatype of 'c' to match it.
Otherwise, 'c' may hold a value of 255 (0xff), and fail the comparison
with -1 (0xffffffff): while ((c = getopt(...)) != -1)

This bug was uncovered on Ubuntu 13.04 running on ARM, using
arm-linux-gnueabihf-gcc4.7.

fixes #212

Fedora 18+ installation notes

IVSSwitch: support opts constructor parameter

This parameter is already supported by the other switch classes.

install.sh: improve support for the Fedora linux distribution