Try to use cp instead of install for doc-dir installation

This MR implements what @amohammadi has been suggesting instead of using the install command for copying the doc directory to ${PREFIX} during package installation.

conda/meta.yaml

@@ -14,12 +14,10 @@ build:
     - python setup.py sdist --formats=zip
     {% endif %}
     - python setup.py install --single-version-externally-managed --record record.txt
-    # installs the documentation source, readme and license to share/doc
-    # so it is available during test time
-    - install -d ${PREFIX}/share/doc/{{ name }}
-    - install -m 644 -D README.rst ${PREFIX}/share/doc/{{ name }}
-    - install -m 644 -D LICENSE ${PREFIX}/share/doc/{{ name }}
-    - find doc -type f -exec install -m 644 -D "{}" "${PREFIX}/share/doc/{{ name }}/{}" \;
+    # installs the documentation source, readme to share/doc so it is available
+    # during test time
+    - install -d "${PREFIX}/share/doc/{{ name }}"
+    - cp -R README.rst doc "${PREFIX}/share/doc/{{ name }}/"
 
 requirements:
   host:
@@ -54,6 +52,7 @@ test:
 
 about:
   home: https://www.idiap.ch/software/bob/
-  license: BSD 3-Clause
   summary: A collection of zc.buildout recipes for Bob packages
+  license: BSD 3-Clause
   license_family: BSD
+  license_file: ../LICENSE