* CSV now renames duplicate ingest headers
* Fix broken test
* xlsx ingester now handles duplicate col names
* Update CHANGELOG
* Additional tests for ingest.column.rename
* Removed dead comment in grammar
* Fixed space issues with expressions
* Alias can now be an arbitrary string
* Alias can now be an arbitrary string (fixed)
* Alias now automatically applied to expressions
* Ignore .run
* Fixed issue with TestRun not logging correctly to testing.T
* Fiddling with sqlite3 temp file closing
* Re-enable tests
* test: slq2sql more test cases; now executes the generated query
* groupby: first test case working against all DBs
* sakila: added sqlserver 2019 source
* groupby: tests for groupby synonyms
* groupby: final touches
* sakila: initial test data
* sakila: more test data
* sakila: yet more test data setup
* whitespace cols: now working for sqlite
* grammar cleanup
* whitespace cols: now working inside count() func for sqlite
* whitespace cols: tests mostly passing; begining refactoring
* grammar: refactor handle
* grammar: more refactoring
* grammar: rename selElement to selector
* wip
* all tests passing
* all tests passing
* linting
* driver: implement CurrentSchema for all driver.SQLDriver impls
* driver: tests for AlterTableRename and AlterTableRenameColumn
* undo reformat of SQL
* undo reformat of SQL
* undo reformat of SQL
* undo reformat of SQL
* Clean up misc text
* config: will repair itself if active source is corrupted
* Clean up error handling code
* CHANGELOG update
* Update config tests to allow invalid active source
