Merge pull request #1 from sarracini/master

Improved looks of buttons
fixed header
Added file selection functionality. Improved overall look
Merge pull request #2 from sarracini/master

Added file selection functionality. Improved overall look
Merge pull request #3 from sarracini/master

Added drop down menus, home and help buttons
Fixed positioning, added popup help page, added placeholder images, cleaned code, removed home button, began dynamic string replacement
Fixed minor issuissues
Fixed minor issues