Compliance: Moves add- and amend_fields to compliance_check

* Due to missing generality, the functions add_fields and
  amend_fields are moved from utils.py to compliance_check.py

Signed-off-by: Martin Vesper <martin.vesper@cern.ch>
Merge pull request #14 from mvesper/journal_dependend_compliance_check

Compliance: Moves add- and amend_fields to compliance_check
Nations: Reworks nations.py to use the field 700__w

* Changes nations.py to use the field 700__w for the nation
  counting

* Moves NATIONS_DEFAULT_MAP to utils.py

Signed-off-by: Martin Vesper <martin.vesper@cern.ch>
Merge pull request #16 from Dziolas/master

Bibcheck plugin for fixing 773 field
Merge pull request #15 from mvesper/nations

Nations: Reworks nations.py to use the field 700__w
Merge pull request #17 from Dziolas/master

Removes unused Makefile rule
Merge pull request #18 from Dziolas/master

Adds new (chk_fix_773_subfields.py) bibcheck plugin to Makefile
Fixes:

* fixes parameters names,
* cast record_id in compliance check to INT,
* changes full path to use invenio.config variable.
Fix for displaying delivery dates when DOI wasnt registered yet.