Merge pull request #171 from allegro/develop

Merge with master
use subventures option in ventures changes report
flake8 fixes
subventures option in devices report
fix information plugin to handle subventures
bugfix
bugfix
bugfix
fixed ventures subtree function
Merge pull request #176 from mkurek/feature/devices-report-ventures-subtrees

Feature/devices report subventures
Merge pull request #177 from inc0/develop

ceilometer plugin bugfix
merge
fixed asset collect plugin - replacing to None
Merge pull request #178 from mkurek/fix/asset-plugin-replace

fixed asset collect plugin - replacing to None
improved gitignore and manifest
logging tweaks
Merge pull request #179 from mkurek/fix/manifest-and-gitignore

improved gitignore and manifest
new report logic
Merge pull request #180 from inc0/develop

Ceilometer pricing tweakups
Merge pull request #175 from mkurek/feature/venture-changes-report-ventures-subtrees

use subventures option in ventures changes report