installer: Add packages needed to build msys-openssh

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
installer: Minor reformatting of the list of package names

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
msys-openssh: Package for openssh without sshd

The HPN-Patches from http://www.psc.edu/index.php/hpn-ssh are also included.

Signed-off-by: Thomas Braun <thomas.braun@virtuell-zuhause.de>
first round of fixes
second round of fixes