Added checks for previous date entry by name

Checks if the user has already submitted a time entry for the submitted
day. Also added message to display on either success or failure. This
feedback should have been there to begin with, but....
removed empty else statement

DOH!
Added checks for previous submissions

Added checks in mileage model insert statements to check if previous
dates already contained entries. Also added error styling to displayed
messages.
Added error display class to error message
removed some blank lines
Changed layout to match mileage submit layout
Merge remote-tracking branch 'origin/develop'
Updated project to use Foundation 4

Complete redesign using  Compass and Sass with Foundation 4
Added error styling to nav.sass partial

For now, since I don't have that many partials in my SCSS, I will just
place this here. Bad Practice... I know... Boo ME!
Updated to properly reflect project
Cleaned gitignore file

Added scss cache folder
Added styling for feedback messages
Removed Feedback Styling

Added new partial, '_feedback.scss' to contain this styling
fixed improperly named variable to solve error
Update class names and add signature area
Added Receipt Uploading to Views and Styling
Added File Upload Form Helper
Dynamically load mileage_receipt script
Failed to work this in...

Made decision, at this point, to finally move the project away from
Codeigniter and into a more modern platform.
Removed Zurb Demo Paage