Angular-gridster2: Fix outerMargins

[tiberiuzuld]

https://github.com/tiberiuzuld/angular-gridster2/issues/222

Steps to reproduce:

Set gridType to GridType.Fixed
Set outerMargin to true
Set outerMarginBottom to 100
Scroll down, and 100px space is not visible
Or even simpler:

Go to demo page and set gridType to Fixed
Add more gridster items to the bottom so that you get big height
Inspect element
Change padding from 10px to 10px 10px 100px 10px
Scroll down, and 100px space is not visible

[tiberiuzuld]

fixed in 5.0.1

[klemenoslaj]

Thanks for fast fix!