Update license and license headers

Author: javier-godoy

LICENSE renamed to LICENSE.txt

@@ -1,13 +1,4 @@
-All parts, except the contents of the documentation module, are licenced
-under Apache License v2.0. See the license text below.
-
-The documentation is licensed under Creative Commons CC-BY-ND 2.0
-(http://creativecommons.org/licenses/by-nd/2.0/legalcode).
-
-
------------------------------------------------------------------------------
-
-                                Apache License
+                                 Apache License
                            Version 2.0, January 2004
                         http://www.apache.org/licenses/
 
@@ -187,15 +178,15 @@ The documentation is licensed under Creative Commons CC-BY-ND 2.0
    APPENDIX: How to apply the Apache License to your work.
 
       To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "{}"
+      boilerplate notice, with the fields enclosed by brackets "[]"
       replaced with your own identifying information. (Don't include
       the brackets!)  The text should be enclosed in the appropriate
       comment syntax for the file format. We also recommend that a
       file or class name and description of purpose be included on the
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright {yyyy} {name of copyright owner}
+   Copyright [yyyy] [name of copyright owner]
 
    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/com/flowingcode/vaadin/addons/chipfield/Chip.java

@@ -1,5 +1,25 @@
 package com.flowingcode.vaadin.addons.chipfield;
 
+/*-
+ * #%L
+ * ChipField Addon
+ * %%
+ * Copyright (C) 2018 Flowing Code
+ * %%
+ * 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 the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
+
 import com.vaadin.flow.component.Component;
 import com.vaadin.flow.component.Tag;
 import com.vaadin.flow.component.dependency.HtmlImport;

src/main/java/com/flowingcode/vaadin/addons/chipfield/ChipField.java

@@ -1,5 +1,25 @@
 package com.flowingcode.vaadin.addons.chipfield;
 
+/*-
+ * #%L
+ * ChipField Addon
+ * %%
+ * Copyright (C) 2018 Flowing Code
+ * %%
+ * 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 the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;

src/test/java/com/flowingcode/vaadin/addons/chipfield/DemoView.java

@@ -1,5 +1,25 @@
 package com.flowingcode.vaadin.addons.chipfield;
 
+/*-
+ * #%L
+ * ChipField Addon
+ * %%
+ * Copyright (C) 2018 Flowing Code
+ * %%
+ * 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 the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;