Add git ignore file
Added account verifier to check if account is 
valid.
Hooked Account to AccountVerifier.
Move exceptions to separate package.
Display acount status along with account number.
Introduce FileAccountParser that reads symbols
from file and writes account numbers to file.
Provide alternative matches from Digit Recognizer.
Extract methods to validate inputs.
Add method to find valid alternatives.
Modify account info method to fix account number
when exactly one valid alternative found.
Add more tests for Account Info.
Complete method to display Account Info
Add test cases from Use Case 3.
Refactor AccountParserTest and 
FileAccountParserTest to use AccountTestData.
Minor refactorings.
Fix subtle error with tests.
Add one more test case.
Update Readme page.