changes from 0.6 to 0.7
-----------------------

* add modules for the following number formats:
  - Onderwijsnummer (Dutch school number)
  - BTW-nummer (Omzetbelastingnummer, the Dutch VAT number)
  - HETU (Finnish personal identity code) as provided by Jussi Judin (#5)
  - RČ (Rodné číslo, the Czech and Slovak birth numbers)
  - SIREN (a French company identification number)
  - FPA, ΦΠΑ (Foros Prostithemenis Aksias, the Greek VAT number)
  - Ust ID Nr. (Umsatzsteur Identifikationnummer, the German VAT number)
  - BTW, TVA, NWSt (Belgian VAT number)
  - DNI (Documento nacional de identidad, Spanish personal identity codes)
  - NIE (Número de Identificación de Extranjeros, Spanish foreigner number)
  - CIF (Certificado de Identificación Fiscal, Spanish company tax number)
  - NIF (Número de Identificación Fiscal, Spanish VAT number)
  - PVN (Pievienotās vērtības nodokļa, Latvian VAT number)
  - CVR (Momsregistreringsnummer, Danish VAT number)
  - TVA (taxe sur la valeur ajoutée, Luxembourgian VAT number)
  - CNP (Cod Numeric Personal, Romanian Numerical Personal Code)
  - CF (Cod de înregistrare în scopuri de TVA, Romanian VAT number)
  - Partita IVA (Italian VAT number)
  - Αριθμός Εγγραφής Φ.Π.Α. (Cypriot VAT number)
  - UID (Umsatzsteuer-Identifikationsnummer, Austrian VAT number)
  - NIF (Número de identificação fiscal, Portuguese VAT number)
  - IČ DPH (IČ pre daň z pridanej hodnoty, Slovak VAT number)
  - ALV nro (Arvonlisäveronumero, Finnish VAT number)
  - DIČ (Daňové identifikační číslo, Czech VAT number)
  - ANUM (Közösségi adószám, Hungarian VAT number)
  - VAT (Irish VAT number)
  - KMKR (Käibemaksukohuslase, Estonian VAT number)
  - PVM (Pridėtinės vertės mokestis mokėtojo kodas, Lithuanian VAT number)
  - n° TVA (taxe sur la valeur ajoutée, French VAT number)
  - VAT (Maltese VAT number)
  - NIP (Numer Identyfikacji Podatkowej, Polish VAT number)
  - ID za DDV (Davčna številka, Slovenian VAT number)
  - VAT (Moms, Mervärdesskatt, Swedish VAT number)
  - VAT (United Kingdom (and Isle of Man) VAT registration number)
  - EGN (ЕГН, Единен граждански номер, Bulgarian personal identity codes)
  - PNF (ЛНЧ, Личен номер на чужденец, Bulgarian number of a foreigner)
  - VAT (Идентификационен номер по ДДС, Bulgarian VAT number)
  - VAT (European Union VAT number)
  - OIB (Osobni identifikacijski broj, Croatian identification number)
  - PPS No (Personal Public Service Number, Irish personal number)
  - CPR (personnummer, the Danish citizen number)
* additional tests for robustness and use introspection to test all modules
* some code refactoring with the introduction of an internal utility module
* improvements to the docstring documentation
* generate API documentation using Sphinx


changes from 0.5 to 0.6
-----------------------

* fix a problem with handling an ISBN13 with a valid check digit but with an
  unknown bookland prefix
* add an IMSI (International Mobile Subscriber Identity) module
* implement a conversion function from ISBN13 to ISBN10
* implement an ismn.ismn_type() function
* implement an imei.split() function that splits the number into a TAC, serial
  number and checksum or software version
* source code layout changes to better follow PEP8


changes from 0.4 to 0.5
-----------------------

* add modules for the following number formats:
  - EAN (International Article Number)
* refactoring to use the EAN check digit code for ISBN and ISMN checks
* implement a conversion function from ISSN to EAN
* support Python3 with the same codebase
* Python 2.5 compatibility improvement


changes from 0.3 to 0.4
-----------------------

* add modules for the following number formats:
  - CPF (Cadastro de Pessoas Físicas, the Brazillian national identification
    number)
  - IBAN (International Bank Account Number)
  - ISIL (International Standard Identifier for Libraries and Related
    Organizations)
  - SSN (U.S. Social Security Number)
* implement an internal module to store and handle hierarchically organised
  data structures efficiently
* regional-specific numbers are now in ISO 3166 packages (the BSN module
  is now in stdnum.nl.bsn)
* ISBN module functions now have a convert flag to convert to ISBN-13 on
  the fly


changes from 0.2 to 0.3
-----------------------

* add modules for the following number formats:
  - ISMN (International Standard Music Number)
  - ISAN (International Standard Audiovisual Number)
  - IMEI (International Mobile Equipment Identity)
  - MEID (Mobile Equipment Identifier)
  - GRid (Global Release Identifier)
* add modules for handling the following check digit algorithms:
  - the Verhoeff algorithm
  - the Luhn and Luhn mod N algorithms
  - some algorithms described in ISO/IEC 7064: Mod 11, 2, Mod 37, 2,
    Mod 97, 10, Mod 11, 10 and Mod 37, 36
* added more unit tests


changes from 0.1 to 0.2
-----------------------

* rename validate() function to is_valid() for all modules
* handle wrong types passed to is_valid() more gracefully
* add more tests and fix some minor bugs