updated submodule locations
updated README
upgraded XPath library (with new area() function)
geowidget updated:
- calculate the geoshape area and display this, #203
- do not allow crossing boundaries in geoshape widget, closes #204
- show delete and close chain button in full screen view, closes #205,
- allow hiding of coordinate input fields in geowidget, closes #196
updated XPath lib with rebuilt files
upgraded XPath evaluator with bug fix for area()
display print hints (form="print"), fix simultaneous display of both form="long" and form="short" labels
fixes bug with loading default geopoint value, closes #208