Move check() function out of the Detect class and place it into utils.cpp for now. Rename Detect class to System, as it now only retrieves data about the underlying system and doesn't detect anything anymore. Cleans up with the confusion between Detect and Autodetection.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22238 a1c6a512-1295-4272-9138-f99709370657
Simplify RockboxInfo file handling. Remove Detect::installedVersion() and Detect::installedTarget(), as those became wrappers around RockboxInfo without functionality.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22237 a1c6a512-1295-4272-9138-f99709370657