Added option for a cow to be medicated.

When an individual cow is viewed its current medication type can be
view. This then links the user to the individual medicine type via a
link.
Added options to cow / cattle medicated value
Load medicine record from cow.hbs for all medicated cows
Removed obsolete files
Added layout for all pages before the user is logged in
Merge branch 'development'
Added styling to the login, signup and index pages
Overhauled styles on the login pages and dashboard.
Added links to dashboard
Alterations to logout button
Dashboard styling updates
Added number of pregnant cows to dashboard
Merge branch 'frontend' into development
Merge branch 'development'
Added pregnant cow counter to dashboard route
Added cows per herd counter and fixed nav bar
Added details to profile page
Merge branch 'development'
Added some nav styling
Merge branch 'development' into frontend