Re-instate .settings.xml for Travis

.settings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<settings>
+  <servers>
+	<server>
+	  <id>repo.spring.io</id>
+	  <username>${env.CI_DEPLOY_USERNAME}</username>
+	  <password>${env.CI_DEPLOY_PASSWORD}</password>
+	</server>
+  </servers>
+  <profiles>
+	<profile>
+      <!--
+          N.B. this profile is only here to support users and IDEs that do not use Maven 3.3. 
+          It isn't needed on the command line if you use the wrapper script (mvnw) or if you use 
+          a native Maven with the right version. Eclipse users should points their Maven tooling to
+          this settings file, or copy the profile into their ~/.m2/settings.xml.
+      -->
+	  <id>spring</id>
+	  <activation><activeByDefault>true</activeByDefault></activation>
+	  <repositories>
+		<repository>
+			<id>spring-snapshots</id>
+			<name>Spring Snapshots</name>
+			<url>http://repo.spring.io/libs-snapshot-local</url>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+		</repository>
+		<repository>
+			<id>spring-milestones</id>
+			<name>Spring Milestones</name>
+			<url>http://repo.spring.io/libs-milestone-local</url>
+			<snapshots>
+				<enabled>false</enabled>
+			</snapshots>
+		</repository>
+		<repository>
+			<id>spring-releases</id>
+			<name>Spring Releases</name>
+			<url>http://repo.spring.io/release</url>
+			<snapshots>
+				<enabled>false</enabled>
+			</snapshots>
+		</repository>
+	  </repositories>
+	  <pluginRepositories>
+		<pluginRepository>
+			<id>spring-snapshots</id>
+			<name>Spring Snapshots</name>
+			<url>http://repo.spring.io/libs-snapshot-local</url>
+			<snapshots>
+				<enabled>true</enabled>
+			</snapshots>
+		</pluginRepository>
+		<pluginRepository>
+			<id>spring-milestones</id>
+			<name>Spring Milestones</name>
+			<url>http://repo.spring.io/libs-milestone-local</url>
+			<snapshots>
+				<enabled>false</enabled>
+			</snapshots>
+		</pluginRepository>
+	  </pluginRepositories>
+    </profile>
+  </profiles>
+</settings>