doc fix [skip ci]
Fixes #2303: support setting basePath and baseUrl as aliases during runtime.
Fixes #735: Added back `ActiveField::hiddenInput()`
message fix. [skip ci]
Fixes #2571: Fixed the bug that batchInsert will fail for SQLite if the values contain null or boolean false;
Fixes #2683: Fixed the bug that batchInsert will fail for MySQL if the values contain boolean false.
Fixed test break.
test break fix.
Fixes #2729: Added `FilterValidator::skipOnArray` so that filters like `trim` will not fail for array inputs
Fixes #2756: Added support for injecting custom `isEmpty` check for all validators
Fixed test break.
Added $action param.
Reformat code te be PSR-2 compatible
Merge pull request #2764 from SonicGD/go-for-psr-2

Reformat code to be PSR-2 compatible
Fixed test break.
Fixed typo in FilterValidator for skipping array values.
Merge pull request #2767 from ZhandosKz/filter_validator_skip_on_array

Fixed typo in FilterValidator for skipping array values.
typo fix in gii.md
Merge pull request #2769 from qiansen1386/patch-3

typo fix in gii.md
fixed requirements checker once again...
reverted wrong changes after #2764

- readded removed file
- readded use statement to migration template