Remove unused NotificationManager variable
Fix import order
Fix whitespace
Check gradle.properties for either "GoogleAPIKey" or "APIKey"
Refactor MozAPIKey code into PackageUtils and remove superfluous exception handling
Merge pull request #169 from freekzy/dev

Map fixes #170
Merge pull request #162 from cpeterso/cpeterso/nits

Refactor MozAPIKey code
Fixed problem #164 on older phones.

We're now using the deprecated preferences activity.
Updated build file to avoid CI build failing.
Merge pull request #173 from freekzy/dev

Added Gradle Wrapper
Merge pull request #165 from denevell/preferences_screen

Fixed problem #164 on older phones.