Maven build fixed

Update to Tycho 2.2.0 as the old Tycho version does not work with Java 8
or larger.
This also speeds up the build process.
Also renamed the artifacts in the pom file, as the folder were renamed
in d79836e

org.eclipse.forkexample.calc.test/pom.xml

@@ -19,7 +19,7 @@
     <version>0.1.0-SNAPSHOT</version>
   </parent>
 
-  <artifactId>org.eclipse.example.calc.test</artifactId>
+  <artifactId>org.eclipse.forkexample.calc.test</artifactId>
   <packaging>eclipse-test-plugin</packaging>
   <version>0.1.0-SNAPSHOT</version>
 

org.eclipse.forkexample.calc/pom.xml

@@ -19,7 +19,7 @@
     <version>0.1.0-SNAPSHOT</version>
   </parent>
 
-  <artifactId>org.eclipse.example.calc</artifactId>
+  <artifactId>org.eclipse.forkexample.calc</artifactId>
   <packaging>eclipse-plugin</packaging>
   <version>0.1.0-SNAPSHOT</version>
 

pom.xml

@@ -50,7 +50,7 @@
 
   <properties>
     <calc-version>0.1.0-SNAPSHOT</calc-version>
-    <tycho-version>1.0.0</tycho-version>
+    <tycho-version>2.2.0</tycho-version>
     <junit-version>4.8.1</junit-version>
   </properties>
 
@@ -84,8 +84,8 @@
   </profiles>
 
   <modules>
-    <module>org.eclipse.example.calc</module>
-    <module>org.eclipse.example.calc.test</module>
+    <module>org.eclipse.forkexample.calc</module>
+    <module>org.eclipse.forkexample.calc.test</module>
   </modules>
 
   <repositories>