Item tracking

- Added HTML5 date and time pickers
Merge branch 'master' of github.com:MarkVSullivan/SobekCM-Web-Application
Item tracking changes:

Process the scanned barcode  onchange of that textbox: validate checksum, get the bib+VID, etc.
Merge branch 'master' of github.com:MarkVSullivan/SobekCM-Web-Application
Item tracking updates

- Added database support for getting & displaying item info for a scanned barcode
- Added some JavaScript for the item info table based on entry type
- Other layout, CSS changes