Added pre-commit.sh script

To install precommit hook, run this
`ln -s pre-commit.sh .git/hooks/pre-commit`
while being in the root of the project
Added basic Store page
Revert "Added basic Store page"

This reverts commit e478ec7d17dd6e3c7eb23aa1462c71b68e9c61dd.
Revert "Revert "Added basic Store page""

This reverts commit 27009c5b06599f9da39ac955abd9a02fab3452a1.
Fixed styles by CSSComb