chore: bump Deno and deps to v0.26.0 (denodrivers#78)

Use deferred from std@v0.22.0 (denodrivers#75)

* Use deferred from std@v0.22.0 and bump deno to 0.22.0

This also drops the permissions.env() default since this is
now async in Deno...

* Don't require --allow-env

bump Deno to v0.20.0 (denodrivers#74)

* bump Deno to v0.20.0

* Update deps.ts

add contributing guidelines (denodrivers#73)

Bump CI to v0.17.0 (denodrivers#65)

* Update .travis.yml

* Update deps.ts

chore: bump to Deno v0.15.0 (denodrivers#64)

* bump to Deno v0.15.0

Merge pull request denodrivers#57 from bartlomieju/deno_v090

bump CI do Deno v0.9.0

Merge pull request denodrivers#40 from bartlomieju/deno_v038

bump Deno to v0.3.8

Merge pull request denodrivers#24 from bartlomieju/update_std

Update deno_std to v0.2.8

Merge pull request denodrivers#18 from bartlomieju/decode_data_row

First pass at decoding data rows