Update version to 0.7.2 (pgcentralfoundation#1058)

Update version to 0.7.1 (pgcentralfoundation#1030)

Update version to 0.7.0 (pgcentralfoundation#1022)

Update version to 0.7.0-beta.1 (pgcentralfoundation#1011)

Update version to 0.7.0-beta.0 (pgcentralfoundation#1000)

tag v0.6.1 release

Release pgx 0.6.0 (pgcentralfoundation#906)

0.6.0 alpha.2 prep (pgcentralfoundation#879)

* upgrade dependencies

* update version to 0.6.0-alpha.2

Release pgx 0.6.0-alpha.1 (pgcentralfoundation#871)

Some bugfixes and slightly improved error detection and docs, mostly!

Release pgx 0.6.0-alpha.0 (pgcentralfoundation#856)