Fixed up Acknowledgments section
Roaming detection theoretical use case
Merge pull request #37 from ferjm/roaming

Roaming detection theoretical use case
Documented Netflix (closes #21)
Documented Facebook (closes #20)
Documented EverNote (closes #23)
Document pocket (closes #24)
Document android's auto-update of apps (closes #22)
Documented economist on android (closes #26)
optimized images
Added link to contributors and license
added note about fair use of screenshots
Merge pull request #41 from w3c-webmob/Acknowledgments

Fixed up Acknowledgments section + license
Merge pull request #43 from w3c-webmob/android_apps_rebase

Document Android apps
Removed theoretical cases. Not as helpful as real cases.
Added iview for iOS (closes #46)
Added links, cleanup text, typos, alt text
Editorial clean up
Reworked use cases and requirements
Integrated Dom's text about d/l manager (closes #33)