Ensure parsing is done in timezone "Europe/London".

This is what the feeds are specified in and we are currently getting incorrect dates when we try to localise.
Merge pull request #35 from guardian/timezone

Ensure parsing is done in timezone "Europe/London".
Setting version to 5.0.0
Setting version to 5.0.1-SNAPSHOT
Update README for v5.0.0 with timezone changes
Merge branch 'master' of github.com:guardian/pa-football-client into local-date