Source for versions 0.1 - 0.2.
Source for version 0.3.
Source for version 0.4.
Source for version 0.5.
Source for version 0.6.
Source for version 0.7.
Source for version 0.8.
Source for version 0.9.
Source for version 1.0.
Source for version 1.1.
Source for version 1.2.
Source for version 1.2.1.
Source for version 1.3.