Allow more than one ssh_opts to be passed to Net::OpenSSH
Support LibVirt connect URI parameter (fix #291)

Try to get the value of a connect key from virtualization config options
if it has been specified as a reference, and use that with virsh as
connect URI. Also tries to fall back to use the default LibVirt
connection parameters.
add ksh to shells
only pass actual option strings to prevent ssh crashes
Merge remote-tracking branch 'sbertrang/fix-openssh-empty-options' into development
redirect stderr to /dev/null
do not call sprintf on undefined values to prevent warnings
Merge remote-tracking branch 'sbertrang/fix-ifconfig-warns-without-ip' into development
version bump
updates contributors and changelog
added screencasts to gitignore
make ssh probe for the right keys
fixed sed command changes mode of target file - #314
fixed rexify does not create projects due to missing file error - #318
changelog update, version update
added cloud_network function to manage networks in the cloud - #320
updated manifest
updated changelog
updated manifest
updated changelog