added heroku server files
Merge branch 'master' of https://github.com/sdrozzy/Depo

# By Jiahe Kuang (1) and others
# Via phillipou94 (2) and sdrozzy (1)
* 'master' of https://github.com/sdrozzy/Depo:
  pre pull push
  usd to btc conversion for the text field
  podfile updated

Conflicts:
	Depo/Base.lproj/Main.storyboard
	Depo/DepoViewController.m