Increment version to 2.0.0
Increment version to 2.0.0

edx/edx-app-android,edx/edx-app-android,edx/edx-app-android,edx/edx-app-android,edx/edx-app-android,ahmedaljazzar/edx-app-android,edx/edx-app-android,ahmedaljazzar/edx-app-android