Cordova iOS 4 compatibility

[joshbuckley182]

Add useXCAssetsPath option. Set to true to write files to the default path used in Cordova iOS 4.

Example usage:

grunt.initConfig({
    phonegapsplash: {
        your_target: {
            src: './raw/splash.svg',
            dest: './',
            options: {
                prjName: 'Example Project',
                profiles: ['ios'],
                useXCAssetsPath: true
            }
        }
    }
});

[ashbrener]

Thank you @joshbuckley182, exactly what I was looking for

[ashbrener]

@PEM-- Is this going to be merged ?

[PEM--]

@ashleybrener : Thanks for the reminder.
@joshbuckley182 : Thanks for the PR.

[ashbrener]

Great thank you @PEM-- .
Could you kindly update npm as well ?

[PEM--]

Done as 0.5.0 and published for Grunt 1.0.0. No breaking changes in the usage.