[Issue #1322] Fixing implementation of download task delegate callbacks

Bumping version to 2.0-RC2

Bumping version to 1.3.2

Updating CHANGES

Bumping version to 2.0.0-RC1

Bumping version to 1.3.1

Bumping version to 1.3.0

Updating release notes

Bumping version to 1.2.1

Updating CHANGES for 1.2.1

Bumping version to 1.2.0

Bumping version to 1.1.0

Adding release notes for 1.0.1