Feature: Added ability to specify indentation for ordered and unordered lists.

[elliottj-accolade]

Updated:

• Gradle build tools (required to get it running in Android Studio 3.1).
• Bintray Release plugin (to 0.8.1).
• Gradle version from 3.1 ---> 4.1
• Compile / Target SDK versions to 27.
• compile ---> implementation.
• google() repo (required for android gradle build tools).

[elliottj-accolade]

Let me know if its absolutely necessary to support back to API 7. I figured enough people were at least above 14 to warrant the upgrade.

[dschuermann]

Awesome, released as 3.6