Does not work on versions of Android before 4.2.1

[TimAidley]

Android doesn't get proper webp suppport until 4.2.1, which means devices with earlier versions than that will not work.

[TimAidley]

Actually - earlier version of android don't work, but not because of the reason I stated above.

The DllImport attribute is meant not to include the 'lib' at the start of the library name, but it seems that later versions of android (4.2 or 4.3 onwards, I think) will ignore 'lib' put at the start of a library name whereas the older versions of android will not. I should have a pull request with a fix for this fairly soon.

[timleader]

Good spot, your right the DllImports should never have had the 'lib' prefix (unfortunately I only have an Android 4.4 device, so the issue was never highlighted for me), should be as simple as removing the 'lib' prefix. I should be able to patch this on the weekend.