Changes Careers* ==> Jobs*, UI/UX still appears as Careers.
Changes 'Resources' to 'Resource' (singular form for Model).
Adds UJS for Jobs edit page (for edit & delete).
Adds ability to create new Job from ../careers/edit page.
Adds ability to create new Resource from ../resources/edit page.
Merge pull request #4 from CarlosPlusPlus/resource-rework

Career (Job) & Resource Rework