[license] Cleanup duplicate LICENSE files

github.com auto-detects the licensing terms if and only if the root
directory contains a single license file.

To leverage this, distinguish via main README file between:
- main fuel repository license (apache-2.0);
- documentation license (cc-by-4.0);
- 3rd party licenses (non-exhaustive list for 3rd party projects);

While at it, add missing license headers to docs auxiliary files.

Change-Id: I7bd25573b0c2b8d16881c7ae72198f5981683c08
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
(cherry picked from commit 650b54aeead7eee047ed17eacb4bc401c936a0aa)

4 files changed, 417 insertions, 1 deletions

diff --git a/docs/LICENSE b/docs/LICENSE
new file mode 100644
index 000000000..d2a14a60a
--- /dev/null
+++ b/docs/LICENSE
@@ -0,0 +1,395 @@
+Attribution 4.0 International
+
+=======================================================================
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diff --git a/docs/conf.py b/docs/conf.py
index 3c4453e71..f0c2a7876 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -1 +1,8 @@
-from docs_conf.conf import *
+##############################################################################
+# Copyright (c) 2018 Linux Foundation and others.
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+from docs_conf.conf import *  # noqa: F401,F403
diff --git a/docs/conf.yaml b/docs/conf.yaml
index bc1072bb5..a7ce79465 100644
--- a/docs/conf.yaml
+++ b/docs/conf.yaml
@@ -1,3 +1,10 @@
+##############################################################################
+# Copyright (c) 2018 Linux Foundation and others.
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
 ---
 project_cfg: opnfv
 project: fuel
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 440843584..208831f0f 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,10 @@
+##############################################################################
+# Copyright (c) 2018 Linux Foundation and others.
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
 lfdocs-conf
 sphinx_opnfv_theme
 # Uncomment the following line if your project uses Sphinx to document