put back maven-compiler plug-in section. Turns out the build fails on Jenkins otherwise.

pom.xml

@@ -19,6 +19,18 @@
 		<scijava.jvm.version>1.7</scijava.jvm.version>
 	</properties>
 
+	<build>
+		<plugins>
+			<plugin>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<configuration>
+					<source>1.7</source>
+					<target>1.7</target>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
 	<dependencies>
 		<dependency>
 			<groupId>sc.fiji</groupId>