The lib can not run on Xcode 10 swift 4.2

[cuongnguyenta]

Some funcs can not run on Swift 4.2 as well as:

• UITextFieldDidChange was obsoleted on Swift 4.2
• NSLayoutFormatOptions also obsoleted.

[zsigmondszilveszter]

#24

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[zsigmondszilveszter]

.

[kpavankotesh]

Fixed in #26