Adds ability to boost audio.

[xzKinGzxBuRnzx]

This was quite simple and does work! #14

[roidy]

Great, but why did you pick those values, 100, 175, 225, 300. That seems to be a non-linear ramp, wouldn't a more linear set of values like 100, 150, 200, 250, 300 be better? Plus does the audio really need boosting 300 percent?

[xzKinGzxBuRnzx]

I got the values from the Roku client source code. https://github.com/plexinc/roku-client-public/blob/27bd31fa2fb5a6f8fee9f3f2ef2ef3568e13f913/Plex/source/PreferenceScreen.brs

I think it doesn't always need boosted. There are some videos I try watching though and the audio is so awful I'm forced to crank my TV to the max, which is bad should anything loud happen. This is rare but I think its a wise choice to provide the option for those of us that don't have / care about 5.1 or greater audio.

[roidy]

Yep, I fully agree audio boost does need adding, I was just questioning the values, I would of thought a more linear progression would of been better. No matter I'll merge the code, the values can always be tweaked later, thanks :)

[elan]

Consistency between the clients as far as values is definitely considered a good thing :)