feature: Updating compiler setting to 1.8

Change-Id: Ic50d504f6d4eca82c268244423d43bc3c88a97f2

org.eclipse.ote.mavenbuild/pom.xml

diff --git a/org.eclipse.ote.mavenbuild/pom.xml b/org.eclipse.ote.mavenbuild/pom.xml
index 34fc199..fe7330b 100644
--- a/org.eclipse.ote.mavenbuild/pom.xml
+++ b/org.eclipse.ote.mavenbuild/pom.xml
@@ -420,8 +420,8 @@
 					<artifactId>tycho-compiler-plugin</artifactId>
 					<version>${tycho-version}</version>
 					<configuration>
-						<source>1.6</source>
-						<target>1.6</target>
+						<source>1.8</source>
+						<target>1.8</target>
 						<encoding>UTF-8</encoding>
 					</configuration>
 				</plugin>