display primary key and foreign key on metadata page
fix foreign keys to have source and destination links
rejig foreign key display
remove unneeded text
Fix primary and foreign keys display

- Fix code indentation
- Remove CSS class "well", doesn't look good especially when foreign
  keys have a well inside a well
- Foreign key display had a <ul> inside a <ul> (invalid HTML), remove
  the outer <ul>
- Add a : after the referenced resource's name
- Fix the referenced resource link URL
- Fix capitalisation style of Primary key and Foreign keys titles
Merge branch 'master' of github.com:ckan/ckanext-b2 into display-primary-keys

Conflicts:
	ckanext/datapackager/lib/helpers.py
	ckanext/datapackager/tests/controllers/test_package.py
Merge branch 'master' into display-primary-keys

Conflicts:
	ckanext/datapackager/lib/helpers.py
	ckanext/datapackager/tests/controllers/test_package.py
Fix a couple of failing tests
Merge branch 'master' of github.com:ckan/ckanext-b2 into display-primary-keys

Conflicts:
	ckanext/datapackager/lib/helpers.py
Merge branch 'display-primary-keys' of github.com:ckan/ckanext-b2 into display-primary-keys

Conflicts:
	ckanext/datapackager/lib/csv_utils.py
	ckanext/datapackager/lib/helpers.py
	ckanext/datapackager/tests/controllers/test_package.py
Merge branch 'master' into display-primary-keys
without default date set the default value is set to todays date

added jan 1st as default date
Merge branch 'display-primary-keys'