ncm-glitestartup: replace use of LC::Check::file/status by CAF

Ready for merging... but let me a chance to remove the last LC::Check calls (directories).
My only problem was that CAF::FileReader is not yet there (on production machines) making the testing difficult (my experience of trying the new CAF on existing machines was not successful). My idea was to change this either during RC if I have time or after14.10.