Updated for loops over Objects to check hasOwnProperty

[bmendric]

Discovered problem with how the eris handles for ... in loops for Object once a custom Object.prototype has been defined. Solution was to verify Object.hasOwnProperty().

All for loops in the library were examined and, if needed, corrected. There were a couple of exceptions, which I did not modify, that used Object.keys() method to "automatically" correct this issue.

Credit to Notice Me on Discord for figuring this one out.