first-run showcase view

[0xc1c4da]

Use something like https://github.com/amlcurran/ShowcaseView or https://github.com/worker8/TourGuide

to demonstrate the core features of the application

• creating/editing profiles
• creating/editing DApps
• sending a transaction

Keeping in-line with http://developer.android.com/design/patterns/help.html#your-app

[0xc1c4da]

don't need it for pre-alpha milestone