Bump version to 0.3.1b2

Author: ivankravets

README.rst

@@ -1,12 +1,10 @@
 PlatformIO Core Installer
 =========================
 
-.. image:: https://travis-ci.org/platformio/platformio-core-installer.svg?branch=develop
-    :target: https://travis-ci.org/platformio/platformio-core-installer
-    :alt: Travis.CI Build Status
-.. image:: https://ci.appveyor.com/api/projects/status/2crg7e2oxutmk07r/branch/develop?svg=true
-    :target: https://ci.appveyor.com/project/ivankravets/platformio-core-installer
-    :alt: AppVeyor.CI Build Status
+
+.. image:: https://github.com/platformio/platformio-core-installer/workflows/CI/badge.svg
+    :target: https://docs.platformio.org/en/latest/core/installation.html
+    :alt:  CI Build
 .. image:: https://img.shields.io/badge/license-Apache%202.0-blue.svg
     :target: https://pypi.python.org/pypi/platformio/
     :alt:  License

get-platformio.py

@@ -14,7 +14,7 @@
 
 import logging.config
 
-VERSION = (0, 3, "1b1")
+VERSION = (0, 3, "1b2")
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio-installer"