Update CHANGELOG.md

Update toc

Change to dbt.escape_single_quotes

Add if execute checks to xdb deprecation warnings (dbt-labs#725)

* Add if execute checks to xdb deprecation warnings

* Update CHANGELOG.md

* Get changelog to reflect reality [skip ci]

Use backwards comaptible versions of timestamp macro

Remove not null where and unique where (dbt-labs#678)

Add where clause example (dbt-labs#623)

* Add where clause example

- Provided example of optional where clause in get_columns_values

* Update README.md

Remove cross-db dbt_utils references (dbt-labs#650)

* First pass at removing cross-db dbt_utils references

* Update docs

* Update README.md

Final 0 9 0 prep (dbt-labs#643)

* Move deprecated macros to a deprecated folder

* Move width_bucket into sql generators

* Warn that some more macros will be removed in future

* Fix BQ seed

Update changelog for dbt-utils v0.8.6 (dbt-labs#608)