New options: floatingLabelAlwaysShown and helperTextAlwaysShown.

Try to fix StaticLayout instantiate bug on some devices.

Sample update

added android:gravity attribute support for floating label.

Merge pull request rengwuxian#29 from hzsweers/master

Custom validation interface

Merge pull request rengwuxian#25 from hzsweers/master

Use IntDef for float label modes to have lint and better IDE autocomplete support

1.4.2 release

1.4.0 release

1.3.2 README

1.3.1 release