utils: name capitalization fix

Signed-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>
world_scientific_package: conversion fixes

* Adds 980__:Published.

* Keeps only 0247_ and 773__ fields for Erratum records.

Signed-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>
world_scientific_package: tests added

Signed-off-by: Georgios Papoutsakis <georgios.papoutsakis@cern.ch>
Merge pull request #105 from GiorgosPa/test

Tests Addition for world_scientific_package