Network KML: relative hrefs and bounding boxes

When attempting to load

http://mw2.google.com/mw-earth-vectordb/gallery_layers/network_links/google_earth_community/google_earth_community_en.kml, or

http://earthobservatory.nasa.gov/Feeds/GoogleEarth/eo.kml, or

http://mw2.google.com/mw-earth-vectordb/dynamic/everytrail/en/root.kmz

There are two critical issues;

* Locus's kml implementation doesn't seem to apply the parent KML's base href to relative URLs loaded via network links. The above KML has a network link to

http://mw1.google.com:80/mw-earth-vectordb/gecommunity/14/root.kmz

This document in turn which has network links to: <href>03.kmz</href>, <href>02.kmz</href>, etc, which should be interpreted as

http://mw1.google.com:80/mw-earth-vectordb/gecommunity/14/03.kmz, etc.

However, it uses the temporary directory as a base:

E/UtilsHttp(16755): java.lang.IllegalArgumentException: URI is not absolute: /mnt/sdcard/Locus/data/import/b267fcb509kmz/03.kmz

Should the above be corrected:

* Please add implementation for regional bounding boxes (<Region><LatLonAltBox>...) for <NetworkLink>. As is, locus will pull all networklinks.

E/UtilsHttp(16755): java.lang.IllegalArgumentException: URI is not absolute: /mnt/sdcard/Locus/data/import/b267fcb509kmz/03.kmz

E/UtilsHttp(16755): java.lang.IllegalArgumentException: URI is not absolute: /mnt/sdcard/Locus/data/import/b267fcb509kmz/02.kmz

E/UtilsHttp(16755): java.lang.IllegalArgumentException: URI is not absolute: /mnt/sdcard/Locus/data/import/b267fcb509kmz/01.kmz

E/UtilsHttp(16755): java.lang.IllegalArgumentException: URI is not absolute: /mnt/sdcard/Locus/data/import/b267fcb509kmz/00.kmz

This is critical; root.kmz is the base of a global quadtree, which involves recursive loading of networklinks. For some of these kmls there's literally millions of child .kmz's, but only the correct quad needs to be fetched. For example (a ~2km wide zoom to Rabaul):

http://mw1.google.com/mw-earth-vectordb/gecommunity/14/03.kmz

http://mw1.google.com/mw-earth-vectordb/gecommunity/14/032.kmz

http://mw1.google.com/mw-earth-vectordb/gecommunity/14/0322.kmz

http://mw1.google.com/mw-earth-vectordb/gecommunity/14/03221.kmz

http://mw1.google.com/mw-earth-vectordb/gecommunity/14/032212.kmz

http://mw1.google.com/mw-earth-vectordb/gecommunity/14/0322122.kmz

http://mw1.google.com/mw-earth-vectordb/gecommunity/14/03221220.kmz

http://mw1.google.com/mw-earth-vectordb/gecommunity/14/032212200.kmz

http://mw1.google.com/mw-earth-vectordb/gecommunity/14/0322122001.kmz

http://mw1.google.com/mw-earth-vectordb/gecommunity/14/03221220011.kmz

http://mw1.google.com/mw-earth-vectordb/gecommunity/14/032212200112.kmz