PEP8
--use-mirrors when installing pip dependencies
OSM: import more types of stores
Documented Weather app
Renamed test file for coherence
Added "expires" attribute on ServiceView, can be set to a timedelta to control HTTP headers "Expires" and "Cache-Control".
Added some documentation about ServiceView.expires
Expires headers for Transport RTI view
Updated documentation for variable expires
Expires can handle a timedelta or a datetime
Use Werkzeug http_date for date formatting rather than custom code
Add expire headers after making the response

Avoid adding expire headers as CORS headers might return HTTP 400
Updated tests with mocked date
Initial checkin of live departure board code

Work in progress, bulk of code lifted from molly
Added suds as a requirement
Merge pull request #20 from ox-it/serviceview-expire-headers

ServiceView: caching headers support
Cache: added helper to build cache key using args as well.
Cache: added some documentation.
Removed unused LDB code

For the time being we can just display the LDB and add the service
information at a later date.
Added fab task to reload a solr core