Bump version to 0.4.0

Author: natario1

README.md

@@ -5,7 +5,7 @@ Lots of changes were made, so the documentation must be rewritten. You can, howe
 demo app which provides a working example of the new API.
 
 ```groovy
-implementation 'com.otaliastudios:transcoder:0.1.0'
+implementation 'com.otaliastudios:transcoder:0.4.0'
 ```
 
 ## Setup

lib/build.gradle

@@ -3,7 +3,7 @@ apply plugin: 'com.github.dcendents.android-maven'
 apply plugin: 'com.jfrog.bintray'
 
 // Required by bintray
-version = '0.1.0'
+version = '0.4.0'
 group = 'com.otaliastudios'
 archivesBaseName = 'transcoder'