Bump pensions_calculator to 502
Bump pensions_calculator to 503
Bump pension calculator to 504
Bump pension calculator to 506
bump budget_planner 4.0.0.646 => 4.0.0.647
Fix error with overlapping welsh in trust banner
Add flexbox support to promo boxes on the homepage
Added CMS Repository

Based on Public Website repository. API details
still getting worked out, so implementation will 
change.
Move CMS repository classes into own section
Removed links until implemented in CMS
Added fixture to match CMS output
Test the BlockComposer for CMS
Make CMS fixture valid json
Removed specs not used in CMS repo spec
Added retry count to configuration of connection

I'm not happy with the way this is being tested 
but the connection has no access to the retry count
after initialisation without a huge chain of 
__getobj__ and instance_variable_get method calls
Use inflection for CMS acronym.

@modsognir :cake:
Move CMS repositories to repository directory.
Add CMS preview repository.
Add interactor to preview articles.
Add preview action to articles.