Use results_dir and workspace_dir in Builder, Pkgdiff, when extracting archives

Signed-off-by: Tomas Hozza <thozza@redhat.com>
Setup: run tests in verbose mode

Signed-off-by: Tomas Hozza <thozza@redhat.com>
Applicaion: remove unneeded initialization & fix some typos

Signed-off-by: Tomas Hozza <thozza@redhat.com>
Application: Refactor Spec file handling code

Signed-off-by: Tomas Hozza <thozza@redhat.com>
Application: move _initialize_data() to __init__

Signed-off-by: Tomas Hozza <thozza@redhat.com>
Add workspace_dir and results_dir checks & remove unneeded removals

Signed-off-by: Tomas Hozza <thozza@redhat.com>