Labrad utils

Some utilities for dealing with labrad (or more general stuff).

List of general utils:

• labrad_hdf5_to_ndarray : Load a hdf5 file and return the data (numpy.array) and columns of labels (list)
• create_labrad_hdf5file : Create a labrad hdf5 file from ndarray.
• labrad_hdf5_get_parameters : Get parameter settings (e.g., ferquency, time constant added by DV.add_parameters()) from a labrad hdf5 file
• get_parameters_of_func : Get a dictionary of paramteres of the function.
• write_meas_parameters : Write measurement parameters to txt file and labrad hdf5 file.