This is a Sakai OAE Widget which shows iCalendar (webcal://) feeds.
It should live in a directory called calendarfeed/ under devwidgets/ in your 3akai-ux/ directory (assuming you want to install it, rather than just have it burn disk space).
Run build.sh in the project root to build a widget zip archive for
distribution (calendarfeed.zip):
hwtb2@pebble:~/Documents/workspace/calendarfeed> ./build.sh
Building calendarfeed version: v0.0.1
Rebuilding bundles from src-bundles...
Building default.properties...done
Building widget zip archive (calendarfeed-v0.0.1.zip)...
/tmp/calendarfeed.UMC91c ~/Documents/workspace/calendarfeed
updating: calendarfeed/ (stored 0%)
updating: calendarfeed/bundles/ (stored 0%)
updating: calendarfeed/bundles/default.properties (deflated 56%)
updating: calendarfeed/calendarfeed.html (deflated 75%)
updating: calendarfeed/config.json (deflated 63%)
updating: calendarfeed/css/ (stored 0%)
updating: calendarfeed/css/calendarfeed.css (deflated 68%)
updating: calendarfeed/images/ (stored 0%)
updating: calendarfeed/images/calendarfeed.png (deflated 11%)
updating: calendarfeed/images/external.png (stored 0%)
updating: calendarfeed/javascript/ (stored 0%)
updating: calendarfeed/javascript/calendarfeed.js (deflated 71%)
updating: calendarfeed/lib/ (stored 0%)
updating: calendarfeed/lib/dates.js (deflated 67%)
updating: calendarfeed/lib/jquery.ui.slider.js (deflated 76%)
updating: calendarfeed/VERSION (stored 0%)
Written calendarfeed-v0.0.1.zip
Also clean.sh to delete generated .properties and the widget zip archive.