Create POSTS migration and seed it with dummy data

Signed-off-by: Jaimil Prajapati <me@jaimil.com>
Create JSON response of all posts

Signed-off-by: Jaimil Prajapati <me@jaimil.com>
Bump version number to 1.2

Signed-off-by: Jaimil Prajapati <me@jaimil.com>
Merge branch 'release/1.2' into develop