Bump to Spring Boot 1.5

Author: making

pom.xml

@@ -41,7 +41,7 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <doma.version>2.15.0</doma.version>
-        <spring-boot.version>1.3.6.RELEASE</spring-boot.version>
+        <spring-boot.version>1.5.1.RELEASE</spring-boot.version>
         <rootDir>${project.basedir}</rootDir>
     </properties>