SSHUDView - visible flag
Make SSPieProgressView innerBorder do something sane
make randomObject work with empty arrays
Don't crash when shuffling empty arrays
do not make SSHUDView key window
HUD view - add padding to text label
OSX comp
Fixed warnings
Update ISO8601 parsing to not fail on fractional seconds

Based on https://github.com/soffes/SAMCategories/blob/master/SAMCategories/NSDate%2BSAMAdditions.m
Currently it just stupidly skips them. We should really look into replacing it with something that's standard-compliant in the future