ONOS-533 Fix copyrights

- Any files created in 2014 and modified in 2015 got a copyright of
  2014-2015
- Used canonical form of 2014-2015 to be inclusive of extra years.
  Some files had 2014,2015

Change-Id: If9a133618873e4000b8f10299bde7c870eb1fbd5
diff --git a/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/DriverManager.java b/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/DriverManager.java
index ec8bf31..746cdd5 100644
--- a/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/DriverManager.java
+++ b/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/DriverManager.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 Open Networking Laboratory
+ * Copyright 2014-2015 Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFOpticalSwitchImplLINC13.java b/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFOpticalSwitchImplLINC13.java
index 1a45774..61c37df 100644
--- a/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFOpticalSwitchImplLINC13.java
+++ b/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFOpticalSwitchImplLINC13.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 Open Networking Laboratory
+ * Copyright 2014-2015 Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFSwitchImplCPqD13.java b/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFSwitchImplCPqD13.java
index 3fea81c..75be9d2 100644
--- a/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFSwitchImplCPqD13.java
+++ b/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFSwitchImplCPqD13.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 Open Networking Laboratory
+ * Copyright 2014-2015 Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFSwitchImplOVS10.java b/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFSwitchImplOVS10.java
index bdf719e..38fe65f 100644
--- a/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFSwitchImplOVS10.java
+++ b/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFSwitchImplOVS10.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 Open Networking Laboratory
+ * Copyright 2014-2015 Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFSwitchImplOVS13.java b/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFSwitchImplOVS13.java
index a4ec0a1..52ee5d1 100644
--- a/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFSwitchImplOVS13.java
+++ b/openflow/drivers/src/main/java/org/onosproject/openflow/drivers/OFSwitchImplOVS13.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014 Open Networking Laboratory
+ * Copyright 2014-2015 Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.