Add a component to list variables defined in an opendap resource.
Modify iOPeNDAPAttribute to allow all attributes (global and varaible) to be retrieved
Add default icon for iOPeNDAPVariable
Return null for attributes that don't exist instead of a null pointer exception (iOPeNDAPAttributes)
Convert non-string attributes to strings if string type is requested
Review changes - rename addContainer method to better reflect what the method is doing and remove unnecessarily repeated code
Merge pull request #4 from aodn/netcdf-metadata

Netcdf metadata