Upgrade to PD-0.48-0

• Upgrade to PD-0.48-0
• Raise min Android SDK to 17 (see #70 for details)
• Migrate to CircleCI 2.0
• Target Android 8.1 (API level 27) #76
• Add PdService.startAudio(Notification) method
• Add arm64-v8a and x86_64 to NDK build
• Remove armeabi #78

Based on PD 0.47-1

This is the first release that is based on PD 0.47-1 which includes 'clone' object.

Added bob~ and stdout externals

This patch adds the PD objects bob~ and stdout

Building with Gradle and Android Studio

There were no changes done to the API of pd-for-android but rather to the way that it can be used. It is much simpler now to integrate the library in Android apps and the project can now be easily used with Android Studio, which has replaced Eclipse as the standard tool used for developing Android apps.

1.0.0-rc4

Fixed arm-64v8 ABI related issue: #32

v1.0.0-rc3

Merge pull request #23 from tkirshboim/master

Updated tools, replaced maven central with jcenter