Process definition with minOccurs=1 and defaultvalue contracdict themselves

[fmigneault]

I noticed in following description that this process provides a region input with both explicit min_occurs=1 and default="DEU".

flyingpigeon/flyingpigeon/processes/wps_subset_countries.py

Lines 31 to 33 in 9f12aa3

	min_occurs=1,
	max_occurs=len(countries()),
	default='DEU',

This produces a process description where it is hard to understand what is the expected behaviour. If an input is always required, there should not be a default. Otherwise, min_occurs=0 should be provided and it would be expected that this default is used. Right now, default serves no purpose and is counter intuitive.