prevent uploads clobbering build-logs

Signed-off-by: Paul Burton <paulburton89@gmail.com>
add package overview

Introduce support for displaying an overview of all packages & their
state. This could use some enhancement like showing an overall
percentage of packages in each state & a key, but it's a nice start
as-is.

Signed-off-by: Paul Burton <paulburton89@gmail.com>