adds first tools specs
adds tools resource to routes
adds validations to tools
fixes typos
adds default checked in status
fixes index spec typo
adds simplecov
adds update method
adds flash messages for updates
delete method for tools
delete tools specs
passing specs for deleting a tool
tests flash message on failure to update tool
Merge pull request #3 from Elffers/tools

Tools & posts controller/model & specs
adds delete and update specs
adds post routes
fixed show post spec and path to take in id
redirects to post path after creation or updates
adds require admin to posts new, update, and destroy
passing specs for posts methods