pom.xml(mysql-connector-java): update to 5.1.38

@see http://dev.mysql.com/doc/relnotes/connector-j/5.1/en/news-5-1-38.html

No functional changes.

Author: php-coder

pom.xml

@@ -75,6 +75,7 @@
 		<javax-mail.version>1.5.4</javax-mail.version>
 		<jetty.version>9.2.11.v20150529</jetty.version>
 		<h2.version>1.4.191</h2.version>
+		<mysql.version>5.1.38</mysql.version>
 		<slf4j.version>1.7.19</slf4j.version>
 		<spock.version>1.0-groovy-2.0</spock.version>
 		<spring-data-releasetrain.version>Dijkstra-SR4</spring-data-releasetrain.version>
@@ -439,6 +440,7 @@
 		<dependency>
 			<groupId>mysql</groupId>
 			<artifactId>mysql-connector-java</artifactId>
+			<version>${mysql.version}</version>
 			<scope>runtime</scope>
 		</dependency>