More info in Kernel, package and homebrew

+ Move script args handler on top for earlier availability
+ Display package info for both brew and ports
+ Display kernel using 'uname -sr'

Here is up to date look
![screenshot_color](https://cloud.githubusercontent.com/assets/485713/3007361/f210fcf8-de7f-11e3-904b-84f671bbdc47.png)

I have made homebrew formula that works but points right now to my repo, https://github.com/Homebrew/homebrew/pull/29364
After merge will need to make tag with version and point homebrew formula to tag in this repo.