Here are some hints about subersion.

1. When setting up subversion for a project like this,  set the EOL to be native except those files that either already have a MIME type associated with them or binary files like IDE configurations.

2. Configure your subversion client to always add new files with eol-style set to native.

3. If a file slips into subversion without the eol-style property set, you can periodically run:
$ svn propset svn:eol-style native *
$ svn commit -m "changed eol-style"