Squashed 'component/db/' content from commit e18f59e

git-subtree-dir: component/db
git-subtree-split: e18f59e11ec536a90b3dd33bc71257cdb3ea2e71
Merge commit '8815a50adc6e68b00f14626486be74a4be0d579c' as 'component/db'
updated namespace of db component classes
db component autoload mapping