Merge pull request #6 from ndemonner/master

Get rid of deprecation warnings in Rails 4.1
Pad OTP codes with less than 6 digits
Make OTP code zero-padding configurable
Add tests and docs for padding
Handle both new and old mode for generating codes
Merge pull request #7 from brissmyr/master

Pad OTP codes with less than 6 digits
Note about adding active_record_otp to an existing user system
Merge pull request #8 from nathanbertram/master

Note about adding active_record_otp to an existing user system
Avoid overriding predefined otp_column value when initializing resource
Merge pull request #10 from ilanstern/master

Avoid overriding predefined otp_column value when initializing resource
otp_column --> otp_secret_key
Merge pull request #11 from nathanbertram/master

otp_column --> otp_secret_key
bump to 1.0.0
Test against to ruby 2.1
Using with Mongoid
Update CHANGELOG.md
Update Readme Custom column name in has_one_time_password
Fix JRuby-head Travis