Add tools list to each project entry.

_data/projects.yml
	-Add a `tools` list to each project entry.

css/projects.sass, projects/index.html
	-Add styling/markup to each project's tool list.
Add project entry for sevko.io.

_data/projects.yml
	-Add an entry for `sevko.io`.
Merge branch 'feature/projects.tools'

projects/index.html
	-Add a list of tools used for each project on the projects page.