* Remove QP context cancelf and metadataf functions which aren't needed/used

* Test fixes 

Works around upstream bug in Postgres JDBC driver pgjdbc/pgjdbc#425

Also includes a lot of test reformatting/cleanup

register fonts for use by cssbox
also tools for rendering pngs from the repl

*  Make sure report timezone is taken into account when converting bucketed datetime filter clauses to ranges
*  Properly handle results for H2 and Oracle TIMESTAMP WITH TIME ZONE columns and SQL Server DATETIMEOFFSET columns
*  Enable timezone tests for all DBs; failing ones disabled for now

Test improvements: 

*  with-temporary-setting-values macro will now throw an Exception if passed an incorrect number of args in binding form
*  Rework Oracle test extensions to use Oracle's wacky INSERT ALL syntax to load all rows for a test dataset at once. Oracle tests 10x faster 
*  Rework timezone tests to be more idiomatic and readable
*  Test fixes to make sure various drivers can properly load test data with timezone-aware columns
*  A few fixes for test utility functions, including making sure the dataset macro works properly when used at the top-level of a test with multiple drivers
*  Fix the random Vertica test failures by adding retry logic when loading data fails
*  Other code cleanup

The biggest performance improvement in history of Metabase since we switched to Clojure

Before when filtering by a "bucketed" datetime field we would wrap the field and the value(s) it was being compared against in casting/truncation functions. For example when compiling a query to find fields where month is September 2019, we previously generated SQL like this:

```sql
SELECT count(*)
FROM public.checkins
WHERE date_trunc('month', CAST(public.checkins.date AS timestamp)) 
    = CAST(timestamp '2019-09-01T00:00:00Z' AS date)
```

As mentioned in #4043, this is not good for performance! Metabase now generates logically equivalent SQL like

```sql
SELECT count(*)
FROM public.checkins 
WHERE (
    public.checkins.date >= timestamp '2019-09-01T00:00:00Z' AND
    public.checkins.date < timestamp '2019-10-01T00:00:00Z'
)
```

Fixes #4043
Fixes #11009 
Fixes #11010
Fixes #11011 
Fixes #11012
Fixes #11013

  

Fix how optional field filter params are substituted; fix support for nested optional params (#10947)

* Param fixes [ci skip]

* Almost all working [ci skip]

* Test fixes

* Test fixes

* Test / linter fixes

* Fix linter errors

fix bugs around setting data permissions for new database

make it easier for users to report diagnostic info by adding it to the troubleshooting UI

* more REPL ergonomics

* make repl development a little quicker

* fix ns

* add core ns

* try to get docker hub and lint to pass

* trying to get build to pass

* move user file to dev dir so it's not in uberjar

* [mongo][ci mongo] use connection string to connect to mongo

* [ci mongo][style]

* [style][ci mongo]

* [style][ci mongo]

* [test] app and test runners wip

* [test] test runners wip

* [mongo][ci mongo] pass in conn opts from ui

* [mongo][ci mongo] test

* [test]

* [style] rm test file

* [mongo][ci mongo] use authdb if provided

* [ci mongo] add domain to hostname for dns-srv to work with localhost testing

* [ci mongo]

* [ci mongo] line len

* [ci mongo] actually use fqdn

* [ci mongo] lint

* [ci mongo] swap protocol depending on if host is fqdn

* [ci mongo] lint

* [ci mongo] fallback to non-srv

* [ci mongo] util fns are private

* [ci mongo] lint

* [ci mongo] inline

* [ci mongo] docstrings

* [ci mongo][test] basic tests for mongo conn options, wip

* [ci mongo][test] tests for mongo conn options, wip

* [ci mongo][i18n] exception string

* [ci mongo][style] refactor

* [ci mongo][style] refactor

* [ci mongo][style]

* [ci mongo][docs]

* [ci mongo] fqdn? true if >= 2 '.'s in hostname

* [ci mongo][srv?] srv toggle in mongo connection UI

* [ci mongo] doc

* [ci mongo] doc

* [ci mongo][ui] srv toggle works