Compliance: Fixes some compliance "reports" issues.

* Fixes printing of CSV.

* Fixes display of delivery dates in HTML and CSV formats.
bibcheck_plugins: Adds chk_add_orcid plugin

* Adds chk_add_orcid plugin, which iterates over every existing
  record and tries to extract orcid ids.

Signed-off-by: Martin Vesper <martin.vesper@cern.ch>
Merge pull request #37 from Dziolas/fix-compliance-printing

Compliance: Fixes some compliance "reports" issues.
Merge pull request #36 from mvesper/add_orcids_plugin

bibcheck_plugins: Adds chk_add_orcid plugin
bibsched_task: Adds deliver/doi-to-package data

* Changes the files bst_elsevier.py, bst_springer.py and bst_oxford.py
  to store the delivery and the mapping of a doi to a package name
  to a database.

* Adds bst_utils.py to unify the general procedure.

Signed-off-by: Martin Vesper <martin.vesper@cern.ch>
Merge pull request #38 from mvesper/dates_aggregation_springer_oup

bibsched_task: Adds deliver/doi-to-package data
BibCheck: fix Hindowi ORCIDs with "-"
Merge pull request #39 from Dziolas/orcid_fix

BibCheck: fix Hindowi ORCIDs with "-"
CSS: Add missing style for author ORCID logo
Merge pull request #40 from Dziolas/orcid_fix

CSS: Add missing style for author ORCID logo
BstUtils: correct a typo in variable name