added a plugin, which adds the copyright to the header of each file

pom.xml

@@ -10,6 +10,7 @@
 	<name>TeeTime</name>
 	<description>TeeTime is a Pipes-and-Filters framework for Java</description>
 	<url>http://teetime.sourceforge.org</url>
+	<inceptionYear>2015</inceptionYear>
 
 	<licenses>
 		<license>
@@ -115,7 +116,7 @@
 
 	<build>
 		<plugins>
-			
+
 			<!-- we want JDK 1.6 source and binary compatibility -->
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
@@ -282,6 +283,38 @@
 					</dependency>
 				</dependencies>
 			</plugin>
+
+			<!-- Copyright Header -->
+			<plugin>
+				<groupId>com.mycila</groupId>
+				<artifactId>license-maven-plugin</artifactId>
+				<version>2.7</version>
+				<configuration>
+					<header>com/mycila/maven/plugin/license/templates/APACHE-2.txt</header>
+					<properties>
+						<owner>Mycila</owner>
+						<email>mathieu.carbou@gmail.com</email>
+					</properties>
+					<excludes>
+						<exclude>**/README</exclude>
+						<exclude>src/test/resources/**</exclude>
+						<exclude>src/main/resources/**</exclude>
+						<exclude>conf/**</exclude>
+						<exclude>doc/**</exclude>
+						<exclude>experiments/**</exclude>
+						<exclude>run-configurations/**</exclude>
+						<exclude>target/**</exclude>
+						<exclude>pom.xml</exclude>
+					</excludes>
+				</configuration>
+				<executions>
+					<execution>
+						<goals>
+							<goal>check</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
 		</plugins>
 	</build>