bump jruby 1.7.21

Signed-off-by: Brian Goff <[email protected]>

library/jruby

@@ -1,21 +1,17 @@
 # maintainer: Brian Goff <[email protected]> (@cpuguy83)
 
-1.7: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/jre
-1.7.20: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/jre
-1.7.20.1: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/jre
-latest: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/jre
-
-1.7-jre: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/jre
-1.7.20-jre: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/jre
-1.7.20.1-jre: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/jre
-
-1.7-jdk: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/jdk
-1.7.20-jdk: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/jdk
-1.7.20.1-jdk: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/jdk
-
-1.7-onbuild: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/onbuild
-1.7.20-onbuild: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/onbuild
-1.7.20.1-onbuild: git://github.com/cpuguy83/docker-jruby@a108cb09f3213b8230242bbace8880174f81a6f0 1.7/onbuild
+1.7: git://github.com/cpuguy83/docker-jruby@10d7ac08b7138c274a819af1bd8258d61cb55f9e 1.7/jre
+1.7.21: git://github.com/cpuguy83/docker-jruby@10d7ac08b7138c274a819af1bd8258d61cb55f9e 1.7/jre
+latest: git://github.com/cpuguy83/docker-jruby@10d7ac08b7138c274a819af1bd8258d61cb55f9e 1.7/jre
+
+1.7-jre: git://github.com/cpuguy83/docker-jruby@10d7ac08b7138c274a819af1bd8258d61cb55f9e 1.7/jre
+1.7.21-jre: git://github.com/cpuguy83/docker-jruby@10d7ac08b7138c274a819af1bd8258d61cb55f9e 1.7/jre
+
+1.7-jdk: git://github.com/cpuguy83/docker-jruby@10d7ac08b7138c274a819af1bd8258d61cb55f9e 1.7/jdk
+1.7.21-jdk: git://github.com/cpuguy83/docker-jruby@10d7ac08b7138c274a819af1bd8258d61cb55f9e 1.7/jdk
+
+1.7-onbuild: git://github.com/cpuguy83/docker-jruby@10d7ac08b7138c274a819af1bd8258d61cb55f9e 1.7/onbuild
+1.7.21-onbuild: git://github.com/cpuguy83/docker-jruby@10d7ac08b7138c274a819af1bd8258d61cb55f9e 1.7/onbuild
 
 9.0.0.0: git://github.com/cpuguy83/docker-jruby@14113750316f06b2785a41b5bc3dd6b23510af6f 9000/jre
 9.0.0.0-jre: git://github.com/cpuguy83/docker-jruby@14113750316f06b2785a41b5bc3dd6b23510af6f 9000/jre