Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Safety notes summary

Will add more detailed notes & fancy flowchart
Merge remote-tracking branch 'upstream/master'
Safety notes updated

Fairly general, more specific aspects can be considered by the people
working on that system
Merge pull request #13 from justinjessada/master

Added software safety summary & checklist