Wrote release announcement

- Added 1.12.2 download
- Wrote release announcement
- Linked to release announcement from homepage
Compiled blog
Compiled changelog

- Also, fixed issue with changelog view script; was not creating <tr></tr> tags
Updated manual versions

- 1.12.2 instead of 1.12.1
Update API doc link to 1.12.2
Merge branch 'releases/1.12.2'

1.12.2 readiness