enhancement - instead of giving an error, give a warning when non-unique channels are present and discard them. See also #2062
enhancement - improved channel handling in case of config object, see #2061
bugfix - read lay variable from mat file and rename to layout, see #2061
enhancement - read the test data from the correct location, see #2061
enhancement - always add external/signal, see #2033 and #2061
Merge branch 'master' of github.com:oostenveld/fieldtrip
Merge branch 'master' of github.com:fieldtrip/fieldtrip