The help text for the command line options already referenced the
possibility of opening a saved park directly from a URL, but this was
not yet implemented. This commit changes all path handling for command
line options to accept both local paths and URLs.
If a URL is specified instead of a local path, the program will download
the file to the operating system's temp directory. It will then proceed
to load this file just like local files would be loaded.
The program will try to derive the extension of the temp file from the
original URL and defaults to sv6 (a save file) if it is unable to do so.
This is mostly refactoring of cmake scripts, but also touches build.sh
and install.sh. The cmake should be much more palatable now for major
Linux distributions.
At the same time, new configuration is introduced to Linux version, one
with Twitch enabled.
Please note, however, this change requires update of orctlibs.zip for
mingw builds.
Step 1 on road towards Linux.
Remove windows-specific code, stub it out where needed and make sure we
can still compile it the way it is.
Take care of Travis' build matrix to include new build configuration.
Install new packages.
Ted John