Get travis to encrypt the GitHub token
Get travis to encrypt the GitHub token

Also lint Travis.yml file

abbott567/govuk_prototype_kit,chrishanes/pvb_prisoner_proto,kenmaddison-scc/verify-local-patterns,karlparton/my-govuk,danblundell/verify-local-patterns,Demwunz/esif-prototype,samwake/hoddat-cofc-caseworking,Demwunz/esif-prototype,hannalaakso/accessible-timeout-warning,abbott567/govuk_prototype_kit,hannalaakso/accessible-timeout-warning,DilwoarH/GDS-Prototype-DM-SavedSearch,davedark/proto-timeline,tsmorgan/marx,gup-dwp/pip-prototype-v2,arminio/govuk_prototype_kit,kenmaddison-scc/verify-local-patterns,chrishanes/pvb_prisoner_proto,dwpdigitaltech/ejs-prototype,samwake/hoddat-cofc-caseworking,paulpod/invgov,nhsbsa/ppc-prototype,danblundell/verify-local-patterns,BucksCountyCouncil/verify-local-patterns,abbott567/govuk_prototype_kit,dwpdigitaltech/ejs-prototype,benjeffreys/hmcts-idam-proto,tsmorgan/marx,gavinwye/govuk_prototype_kit,gup-dwp/pip-prototype-v2,hannalaakso/accessible-timeout-warning,alphagov/govuk_prototype_kit,karlparton/my-govuk,DilwoarH/GDS-Prototype-DM-SavedSearch,DilwoarH/GDS-Prototype-DM-SavedSearch,paulpod/invgov,davedark/proto-timeline,dwpdigitaltech/ejs-prototype,companieshouse/ch-accounts-prototype,karlparton/my-govuk,alphagov/govuk_prototype_kit,paulpod/invgov,BucksCountyCouncil/verify-local-patterns,BucksCountyCouncil/verify-local-patterns,companieshouse/ch-accounts-prototype,joelanman/govuk_prototype_kit,joelanman/govuk_prototype_kit,gup-dwp/pip-prototype-v2,dwpdigitaltech/hrt-prototype,arminio/govuk_prototype_kit,kenmaddison-scc/verify-local-patterns,dwpdigitaltech/hrt-prototype,gavinwye/govuk_prototype_kit,Demwunz/esif-prototype,samwake/hoddat-cofc-caseworking,danblundell/verify-local-patterns,nhsbsa/ppc-prototype,benjeffreys/hmcts-idam-proto,benjeffreys/hmcts-idam-proto,davedark/proto-timeline,alphagov/govuk_prototype_kit,chrishanes/pvb_prisoner_proto,dwpdigitaltech/hrt-prototype,tsmorgan/marx,nhsbsa/ppc-prototype,joelanman/govuk_prototype_kit,arminio/govuk_prototype_kit