Merge pull request #21 from tylerberry4/tb

Fixed responsive issues on landing page, styled foods page
Add unique timestamp validation for sleep sessions.
Add created_at and updated_at timestamps to sessions and meals.
Cap movement and sleep session scores at max of range.
Fix merge conflict.
Get model tests to pass again.
Add button to mark meal as incomplete.
Meals can be marked as incomplete.
Dashboard only shows three most recent meals.
Add text inside progress bars on dashboard.
Fix failing tests.
Merge pull request #22 from jjlangholtz/jjl

Add nutrition reporting to dashboard.
Created 3rd infograph for about page
Added text to about page