Validate empty "" IBAN

Previously only an empty (undefined) IBAN was validated but now also an empty ("") IBAN gets validated.

Credits to @xanderv87

Minor hotfix release

Testcase was failing with angular versions >= 1.3.0

Issues fixed

Issue #1 has been fixed in this release

Added country name to ngIbanCountries constant

0.2.6

'0.2.6'

Renamed country constant

renamed the 'countries' constant to 'ngIbanCountries'

Added Timor-Leste

Timor-Leste has been added to the list of countries

Updated parsing

A valid IBAN now parses to the digital format

Updated validation

Updated the regexes for country specific validation

convert to spaceless IBAN

Remove spaces from IBAN and convert letters to uppercase

Country code validation

The validation of the IBAN can now be based on a country code from a predefined list of countries. See the README for more information.