Merge branch 'hotfix/ag-1.0.2-link'
Created security announcement for ag 1.0.3

- Created blog post
- Created security advisory
- Updated security advisory model to sort by date first, then by key when date
  is same.
Prepared site for ag-1.0.3 release

- Compiled blog
- Updated homepage
Merge branch 'releases/ag-1.0.3' into develop