the script now automatically picks up the architectures present in
the build directory. Also builds installer without data files if no
data files are present.
Wrt loki metadata the installer now installs ioq3 as default
component instead of the data files. After all baseq3 is just a mod
(almost) like any other.
files. This allows edit and continue to be used, and prevents a build warning
about inconsistencies in the project files.
* Convert line endings back to DOS in the MSVC project files, as MSVC
silently replaces UNIX endings for project files.
