enhancement - implemented support for the neuromag_fif chunk for realtime MEG processing, support little-endian fiff files, added some documentation. See http://bugzilla.fcdonders.nl/show_bug.cgi?id=1792


git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@8618 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0