hg: jdk7/build: Added tag jdk7-b78 for changeset ab4ae8f45146

[kelly . ohair]

Changeset: 20aeeb517139
Author:    mikejwre
Date:      2009-12-17 14:10 -0800
URL:       http://hg.openjdk.java.net/jdk7/build/rev/20aeeb517139

Added tag jdk7-b78 for changeset ab4ae8f45146

! .hgtags