[WIP] My post of Jun'14

## :warning: WORK IN PROGRESS :warning: 

- [ ] Fix / add missing links
- [ ] Add missing images
- [ ] Ask someone to review (@matheusbras ?)
- [ ] Fix post date before publishing

Will close GH-164 after merging.

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This ended up being a HUGE post, does anyone think I should split it up?
in our apps

In
in mainly denotes “rest at”:
PLACE: He lives in the country. He lives in Chicago. (BUT, He lives at 2300 Wabash Ave.)
TIME: I’ll be there in an hour.
MANNER: The child ran down the steps in tears.
REFERENCE: In my opinion we need a referendum. They are happy in their marriage.
On
on indicates proximity and position above or outside:
PLACE: He sat on the fence.
TIME: He was not thinking well on that occasion.
REFERENCE: He asked my opinion on the matter.
CONDITION: We’ll hire him on your recommendation.