Add the MP identifier to the returned data
Get the party of the MP
Merge retrieval of full name and party

Both values are now obtained from a single, more efficient method. This removes one DOM filtering operation.
Fix explode of ‘full name - party’ string

This was causing issues with party names containing an hyphen.
[fix] ‘party names’ are actually names of groups

What were supposed to be party names are in fact names of political groups. This change updates the necessary code and comments in order to reflect the correct nature of this piece of information.