24 inspirehep institute

• Parameters of the institute are searched in the inspirehep database.
• The preference reg_institute has been removed
• The preference inspirehep_insitute_id has been added
• The function fix_amu has been removed and replaced by a more generic approach: the method CheckAndFix.format_universities. The latter depends on inspirehep_insitute_id
• Close #24 (closed)