BibIngest: new module to handle document ingestion

* Introduces a new module 'BibIngest' that handles document ingestion for
  Invenio. The module provides the basic CRUD functions: create, read, update
  and delete.

* Allows for multiple ingestion packages types and storage engines to be
  defined as plugins.

* A configuration file is provided where combinations of ingestion packages
  and storage engines can be defined per collection along with specific
  settings for each case.

Conflicts:
	configure.ac
	modules/Makefile.am
BibIngest: move module to legacy folder

Signed-off-by: Esteban J. G. Gabancho <egabancho@gmail.com>
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>
Data Analysis: Core drafts done
Data Anlysis: Radio fileds fixed
Data Analysis: Old deposition types removed
Data Analysis: Harvester removed for reproduce form
Data Analysis: Reproducion File Upload

* Optional file upload for how to reproduce

* Static files added
Data Analysis: Labels & Placeholders