PAHMA-850; Forces focus/clears text for ObjDetails

If the webapp is Objdetails, adds a line to the jquery setting the focus
to the textbox and clearing it upon loading the page or search results.
PAHMA-852: Simplifies barcodeprint for single location barcodes

Treats an empty end location form as containing the same value as start
location to make printing single location barcodes easier
Merge pull request #31 from JulianJaffe/master

cswaUtils change