Bump build.xml to 0.7.0 for release

Release notes and version bump for Reviki 0.6.2.

Release note improvements from jwl.

Correct release date.

Add missing 0.4.1 release notes.

Release notes for 0.4.1.

Update releae date.

We'll need a 0.3.2 for https://bugs.corefiling.com/show_bug.cgi?id=44604