* Add metametrics provider and util.
* Add backend api and state for participating in metametrics.
* Add frontend action for participating in metametrics.
* Add metametrics opt-in screen.
* Add metametrics events to first time flow.
* Add metametrics events for route changes
* Add metametrics events for send and confirm screens
* Add metametrics events to dropdowns, transactions, log in and out, settings, sig requests and main screen
* Ensures each log in is measured as a new visit by metametrics.
* Ensure metametrics is called with an empty string for dimensions params if specified
* Adds opt in metametrics modal after unlock for existing users
* Adds settings page toggle for opting in and out of MetaMetrics
* Switch metametrics dimensions to page level scope
* Lint, test and translation fixes for metametrics.
* Update design for metametrics opt-in screen
* Complete responsive styling of metametrics-opt-in modal
* Use new chart image on metrics opt in screens
* Incorporate the metametrics opt-in screen into the new onboarding flow
* Update e2e tests to accomodate metametrics changes
* Mock out metametrics network requests in integration tests
* Fix tx-list integration test to support metametrics provider.
* Send number of tokens and accounts data with every metametrics event.
* Update metametrics event descriptor schema and add new events.
* Fix import tos bug and send gas button bug due to metametrics changes.
* Various small fixes on the metametrics branch.
* Add origin custom variable type to metametrics.util
* Fix names of onboarding complete actions (metametrics).
* Fix names of Metrics Options actions (metametrics).
* Clean up code related to metametrics.
* Fix bad merge conflict resolution and improve promise handling in sendMetaMetrics event and confrim tx base
* Don't send a second metrics event if user has gone back during first time flow.
* Collect metametrics on going back from onboarding create/import.
* Add missing custom variable constants for metametrics
* Fix metametrics provider
* Make height of opt-in modal responsive.
* Adjust text content for opt-in modal.
* Update metametrics event names and clean up code in opt-in-modal
* Put phishing warning step next to last in onboarding flow
* Link terms of service on create and import screens of first time flow
* Add subtext to options on the onboarding select action screen.
* Fix styling of bullet points on end of onboarding screen.
* Combine phishing warning and congratulations screens.
* Fix placement of users if unlocking after an incomplete onboarding import flow.
* Fix capitalization in opt-in screen
* Fix last onboarding screen translations
* Add link to 'Learn More' on the last screen of onboarding
* Code clean up: metametrics branch
* Update e2e tests for phishing warning step removal
* e2e tests passing on metametrics branch
* Different tracking urls for metametrics on development and prod
Fixed warnings:
```md
app/scripts/controllers/computed-balances.js
+ 35:27 warning Missing space before function parentheses space-before-function-paren
+ 41:14 warning 'address' is never reassigned. Use 'const' instead prefer-const
+ 61:9 warning 'updater' is never reassigned. Use 'const' instead prefer-const
+ 68:11 warning 'newState' is never reassigned. Use 'const' instead prefer-const
app/scripts/controllers/network.js
+ 104:29 warning Missing space before function parentheses space-before-function-paren
app/scripts/lib/createLoggerMiddleware.js
+ 4:32 warning Missing space before function parentheses space-before-function-paren
+ 15:2 warning Newline required at end of file but not found eol-last
app/scripts/lib/createOriginMiddleware.js
+ 4:32 warning Missing space before function parentheses space-before-function-paren
+ 9:2 warning Newline required at end of file but not found eol-last
app/scripts/lib/createProviderMiddleware.js
+ 5:34 warning Missing space before function parentheses space-before-function-paren
+ 13:2 warning Newline required at end of file but not found eol-last
app/scripts/lib/events-proxy.js
+ 1:50 warning Missing space before function parentheses space-before-function-paren
+ 31:2 warning Newline required at end of file but not found eol-last
app/scripts/lib/nodeify.js
+ 2:22 warning Missing space before function parentheses space-before-function-paren
+ 2:24 warning Missing space before opening brace space-before-blocks
+ 5:18 warning Missing space before function parentheses space-before-function-paren
+ 5:20 warning Missing space before opening brace space-before-blocks
app/scripts/lib/pending-balance-calculator.js
+ 16:19 warning Missing space before function parentheses space-before-function-paren
app/scripts/lib/pending-tx-tracker.js
+ 85:11 warning '||' should be placed at the end of the line operator-linebreak
+ 87:11 warning '||' should be placed at the end of the line operator-linebreak
+ 88:11 warning '||' should be placed at the end of the line operator-linebreak
+ 90:11 warning '||' should be placed at the end of the line operator-linebreak
+ 91:11 warning '||' should be placed at the end of the line operator-linebreak
app/scripts/lib/port-stream.js
+ 3:22 warning Missing space before function parentheses space-before-function-paren
+ 3:24 warning Missing space before opening brace space-before-blocks
app/scripts/lib/tx-gas-utils.js
+ 84:2 warning Newline required at end of file but not found eol-last
app/scripts/lib/tx-state-history-helper.js
+ 12:37 warning Missing space before function parentheses space-before-function-paren
+ 23:30 warning Missing space before function parentheses space-before-function-paren
+ 30:23 warning Missing space before function parentheses space-before-function-paren
+ 35:28 warning Missing space before function parentheses space-before-function-paren
+ 41:2 warning Newline required at end of file but not found eol-last
app/scripts/lib/tx-state-manager.js
+ 94:13 warning 'value' is never reassigned. Use 'const' instead prefer-const
ui/app/reducers.js
+ 45:7 warning 'state' is never reassigned. Use 'const' instead prefer-const
+ 53:7 warning 'stateString' is never reassigned. Use 'const' instead prefer-const
ui/lib/tx-helper.js
+ 27:2 warning Newline required at end of file but not found eol-last
ui/app/components/account-dropdowns.js
+ 163:1 warning More than 2 blank lines not allowed no-multiple-empty-lines
ui/app/components/menu-droppo.js
+ 22:7 warning 'style' is never reassigned. Use 'const' instead prefer-const
ui/app/components/shapeshift-form.js
+ 135:11 warning '&&' should be placed at the end of the line operator-linebreak
ui/app/components/typed-message-renderer.js
+ 35:25 warning Missing space before function parentheses space-before-function-paren
+ 42:2 warning Newline required at end of file but not found eol-last
mascara/server/index.js
+ 11:42 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat
+ 12:36 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat
+ 13:33 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat
+ 14:40 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat
+ 20:29 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat
+ 21:29 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat
+ 26:40 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat
```
