Update year in license headers

Author: gslowikowski

README.md

@@ -350,7 +350,7 @@ Go to one of them and run `mvn site`.
 ```
 This software is licensed under the Apache 2 license, quoted below.
 
-Copyright 2014-2016 Grzegorz Slowikowski
+Copyright 2014-2018 Grzegorz Slowikowski
 
 Licensed under the Apache License, Version 2.0 (the "License"); you may not
 use this file except in compliance with the License. You may obtain a copy of

pom.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
-Copyright 2014-2016 Grzegorz Slowikowski (gslowikowski at gmail dot com)
+Copyright 2014-2018 Grzegorz Slowikowski (gslowikowski at gmail dot com)
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

src/conf/checkstyle-header.txt

@@ -1,5 +1,5 @@
 ^/\*\s*$
-^ \* Copyright 2014-2016 Grzegorz Slowikowski \(gslowikowski at gmail dot com\)\s*$
+^ \* Copyright 2014-2018 Grzegorz Slowikowski \(gslowikowski at gmail dot com\)\s*$
 ^ \*\s*$
 ^ \* Licensed under the Apache License, Version 2.0 \(the "License"\);\s*$
 ^ \* you may not use this file except in compliance with the License.\s*$

src/main/java/org/scoverage/plugin/SCoverageCheckMojo.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2016 Grzegorz Slowikowski (gslowikowski at gmail dot com)
+ * Copyright 2014-2018 Grzegorz Slowikowski (gslowikowski at gmail dot com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/scoverage/plugin/SCoverageCheckOnlyMojo.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2016 Grzegorz Slowikowski (gslowikowski at gmail dot com)
+ * Copyright 2014-2018 Grzegorz Slowikowski (gslowikowski at gmail dot com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/scoverage/plugin/SCoverageForkedLifecycleConfigurator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2016 Grzegorz Slowikowski (gslowikowski at gmail dot com)
+ * Copyright 2014-2018 Grzegorz Slowikowski (gslowikowski at gmail dot com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/scoverage/plugin/SCoverageIntegrationCheckMojo.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2016 Grzegorz Slowikowski (gslowikowski at gmail dot com)
+ * Copyright 2014-2018 Grzegorz Slowikowski (gslowikowski at gmail dot com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/scoverage/plugin/SCoverageIntegrationReportMojo.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2016 Grzegorz Slowikowski (gslowikowski at gmail dot com)
+ * Copyright 2014-2018 Grzegorz Slowikowski (gslowikowski at gmail dot com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/scoverage/plugin/SCoverageIntegrationTestMojo.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2016 Grzegorz Slowikowski (gslowikowski at gmail dot com)
+ * Copyright 2014-2018 Grzegorz Slowikowski (gslowikowski at gmail dot com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

src/main/java/org/scoverage/plugin/SCoveragePackageMojo.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2016 Grzegorz Slowikowski (gslowikowski at gmail dot com)
+ * Copyright 2014-2018 Grzegorz Slowikowski (gslowikowski at gmail dot com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.