Upgrade o11yphant to 1.5

Author: sswguo

pom.xml

@@ -83,7 +83,7 @@
     <cassandraUnitVersion>3.7.1.0</cassandraUnitVersion>
     <datastaxVersion>3.7.2</datastaxVersion>
     <pathmappedStorageVersion>2.1</pathmappedStorageVersion>
-    <o11yphantVersion>1.5-SNAPSHOT</o11yphantVersion>
+    <o11yphantVersion>1.5</o11yphantVersion>
     <swaggerVersion>1.6.4</swaggerVersion>
 
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