Merge pull request #71 from jglesner/patch-2

s2-geometry library

The s2-geometry library is no longer hosted at bintray by jnegre.
Guessing that's because JFrog runs Bintray and has deprecated
it. Another individual has made the original Google s2 geometry
package available on maven central.

3rdparty/BUILD

@@ -7,7 +7,7 @@ jar_library(
     'opensource',
   ],
   jars = [
-    jar(org = 'org.jnegre.google', name = 's2-geometry', rev = '1.0')
+    jar(org = 'io.sgr', name = 's2-geometry-library-java', rev = '1.0.0')
   ]
 )