sdk/java: increment version to 1.5.3

Closes #3278

Author: Chris Garvin <chris.garvin@me.com>
Date: Wed Apr 11 11:30:07 2018 -0700
upstream:b8931a0841a35d8b3629a22260673df3b50b6de6

Author: chrisgarvin

README.md

@@ -14,7 +14,7 @@ Add the following to your `pom.xml`:
 <dependency>
   <groupId>com.seq</groupId>
   <artifactId>sequence-sdk</artifactId>
-  <version>[1.5.2,2)</version>
+  <version>[1.5.3,2)</version>
 </dependency>
 ```
 

pom.xml

@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.seq</groupId>
     <artifactId>sequence-sdk</artifactId>
-    <version>1.5.2</version>
+    <version>1.5.3</version>
     <packaging>jar</packaging>
 
     <name>${project.groupId}:${project.artifactId}</name>