touch 0.1-6

Minor changes

• Fix ORCID comment and update redirected URLs.

touch 0.1-5

Minor changes

• Added indication for converting ICD codes with positive combination flags.

touch 0.1-4

New features

• Added fast implementation of the mapping tools developed by AHRQ for
  translating ICD-9 (resp. ICD-10) codes to ICD-10 (resp. ICD-9) codes based
  on the General Equivalence Mappings (GEM) from the Centers for Medicare and
  Medicaid Services (CMS).