workflows: change default XSLT

* Changes the XSLT parameter in the example workflow
  "full_doc_process".

Signed-off-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
installation: Python 2.6 on Travis CI

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>
Reviewed-by: Jiří Kunčar <jiri.kuncar@cern.ch>
installation: Flask-Collect to use 0.2.3-dev

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>
Reviewed-by: Jiří Kunčar <jiri.kuncar@cern.ch>
access: using unittest2 in Python 2.6

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>
Reviewed-by: Jiří Kunčar <jiri.kuncar@cern.ch>
workflows: Python 2.6 compatibility

Signed-off-by: Yoan Blanc <yoan.blanc@cern.ch>
Reviewed-by: Jiří Kunčar <jiri.kuncar@cern.ch>
docs: new documentation structure

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
base: wrapper doctest addition

* Adds doctests for `invenio.base.wrappers` that can be executed from
  source code folder: `python -m doctest -v invenio/base/wrappers.py`

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
pidstore: new pid provider for record ids

Signed-off-by: Esteban J. G. Gabancho <esteban.gabancho@gmail.com>
uploader: first release insert mode
uploader: master format save to bibfmt