Bump hotfix version: 1.7.2 => 1.7.3

mkalinin · mkalinin · commit b17cb8a1f9bc · 2018-05-04T12:24:41.000+06:00
diff --git a/ethereumj-core/src/main/resources/version.properties b/ethereumj-core/src/main/resources/version.properties
@@ -1,2 +1,2 @@
-versionNumber='1.7.2'
+versionNumber='1.7.3'
 databaseVersion=6
