SciTools/iris — pull request #552 by esc24 (2013-06-12 13:15:13+00:00)
Title: Switched from sample data to test data.

```test_trajectory``` in ```test_netcdf.py``` uses a file from the iris-sample-data repository. This PR modifies ```test_netcdf.py``` to use the equivalent file from iris-test-data. It also moves the ```skip_data``` decorators so they only apply to the test cases that use test data.