accept NED2 as a valid channel
remove an empty test and some trailing whitespace
make test for missing method pending
Merge pull request #3 from tijn/fix_failing_spec

disable failing spec
Merge pull request #1 from tijn/add_ned_2

accept NED2 as a valid channel
add and remove whitespace

Makes the code easier to read.
fix description of spec

it appears to test something else than it said it would
give ScheduleEvent a #duration

... in SI-units nontheless.