Provide a 'tolerance' to Line class to avoid deprecated constructor
"Planes" won't be part of the initial release
Don't set ActionBar subtitle
Correct "Up" behaviour for FeedbackActivity
Merge branch 'dev'

* dev:
  Correct "Up" behaviour for FeedbackActivity
  Don't set ActionBar subtitle
  "Planes" won't be part of the initial release
  Provide a 'tolerance' to Line class to avoid deprecated constructor