Break out breadcrumb url mappings to config
Remove /*/is/* fragment from breadcrumbs

Requirement is for South-Africa #1046 but as /*/is/ doesn't resolve to anything
useful, this is hopefully a useful fix for all instances.
Fix #1046 supporting renaming of house -> parliament

As discussed evdb/Paul it is easiest to rename the core_organisationkind to
'parliament'

Need to run this SQL:

    update core_organisationkind set name='Parliament', slug='parliament' where slug='house';
Fix /is/ removal to not error on short paths
ZA Overload breadcrumbs for /place/latlon/ #1039

As we can't yet show anything more elaborate in here, it's
easiest to override the template to override the breadcrumb
Make breadcrumb override more generic

For #1039 and others
Fix sayit breadcrumbs with whole-template override

This is a rough solution to be refactored.
Merge branch 'issues/breadcrumbs-1046-1039-1030'