src/main/java/com/simpligility/maven/plugins/android/AbstractAndroidMojo.java
protected final void copyFolder( File sourceFolder, File targetFolder ) throws MojoExecutionException
    {
        copyFolder( sourceFolder, targetFolder, TrueFileFilter.TRUE );
    }
protected final void copyFolder( File sourceFolder, File targetFolder ) throws MojoExecutionException
    {
        copyFolder( sourceFolder, targetFolder, TrueFileFilter.TRUE );
    }
Copies the files contained within the source folder to the target folder.
<p>
The the target folder doesn't exist it will be created.
</p>

@param sourceFolder      Folder from which to copy the resources.
@param targetFolder      Folder to which to copy the files.
@throws MojoExecutionException if the files cannot be copied.