Begin work on UI; get search filter to work
complete spreadsheet, upload, and download components
Address pull request comments
Merge pull request #83 from cmperez/home-page

Begin work on UI; get search filter to work
Merge pull request #88 from zindlerb/correctDevelop

complete spreadsheet, upload, and download components
signup/signin working, lacks token expiration. checkAuth function not done, needs client side communication.