Maintenance release

This is a maintenance release which includes the following:

Improvements:

• Added the exif extension #120
• Automatically change into project subdirectory on tbash/tzsh #117
• Various small improvements to the new tdb command #107 #110 #118 (thanks @markmetcalfe)
• Added container for MariaDB 10.5 #125 (thanks @markmetcalfe)

Fixes:

• Fixed tzsh history mount for PHP 7.1
• Fixed mssql initial sql statements #128
• Fixed GD jpeg support on the php-7.4 image (thanks @codyfinegan)
• Fixed mutagen recursive file watching on MacOS (thanks @A1vinSmith)