Addresses some code review comments

Author: juanpedromoreno

src/main/scala/org/scalaexercises/exercises/Exercises.scala

@@ -1,6 +1,20 @@
 /*
- * scala-exercises - runtime
- * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
+ *  scala-exercises
+ *
+ *  Copyright 2015-2017 47 Degrees, LLC. <http://www.47deg.com>
+ *
+ * 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.
+ *
  */
 
 package org.scalaexercises.runtime

src/main/scala/org/scalaexercises/exercises/Timestamp.scala

@@ -1,6 +1,20 @@
 /*
- * scala-exercises - runtime
- * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
+ *  scala-exercises
+ *
+ *  Copyright 2015-2017 47 Degrees, LLC. <http://www.47deg.com>
+ *
+ * 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.
+ *
  */
 
 package org.scalaexercises.runtime

src/main/scala/org/scalaexercises/exercises/model.scala

@@ -1,6 +1,20 @@
 /*
- * scala-exercises - runtime
- * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
+ *  scala-exercises
+ *
+ *  Copyright 2015-2017 47 Degrees, LLC. <http://www.47deg.com>
+ *
+ * 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.
+ *
  */
 
 package org.scalaexercises.runtime

src/test/scala/com/fortysevendeg/exercises/Content.scala

@@ -1,6 +1,20 @@
 /*
- * scala-exercises - runtime
- * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
+ *  scala-exercises
+ *
+ *  Copyright 2015-2017 47 Degrees, LLC. <http://www.47deg.com>
+ *
+ * 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.
+ *
  */
 
 package org.scalaexercises.content

src/test/scala/com/fortysevendeg/exercises/ExampleTarget.scala

@@ -1,6 +1,20 @@
 /*
- * scala-exercises - runtime
- * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
+ *  scala-exercises
+ *
+ *  Copyright 2015-2017 47 Degrees, LLC. <http://www.47deg.com>
+ *
+ * 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.
+ *
  */
 
 package org.scalaexercises.runtime

src/test/scala/com/fortysevendeg/exercises/LibraryDiscoverySpec.scala

@@ -1,6 +1,20 @@
 /*
- * scala-exercises - runtime
- * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
+ *  scala-exercises
+ *
+ *  Copyright 2015-2017 47 Degrees, LLC. <http://www.47deg.com>
+ *
+ * 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.
+ *
  */
 
 package org.scalaexercises.runtime

src/test/scala/com/fortysevendeg/exercises/TimestampSpec.scala

@@ -1,6 +1,20 @@
 /*
- * scala-exercises - runtime
- * Copyright (C) 2015-2016 47 Degrees, LLC. <http://www.47deg.com>
+ *  scala-exercises
+ *
+ *  Copyright 2015-2017 47 Degrees, LLC. <http://www.47deg.com>
+ *
+ * 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.
+ *
  */
 
 package org.scalaexercises.runtime