Remove top venture

- Remove top venture template
- Remove top venture from menu
- Remove top venture from routing
- Remove top venture from urls
hide selected usage types columns on ventures reports
Prepare to release 2.0.0

- Modify change logs
- update requiremets
- Change version
Merge pull request #83 from mkurek/feature/hide-usage-types-columns-on-report

LGTM
Merge pull request #82 from kula1922/feature/usuniecie-top-venture

TMAW
Change version to 2.0.0
Fix notic
Merge pull request #85 from kula1922/feature/prepare-to-release

Prepare to release 2.0.0
Merge branch 'release/2.0.0' of https://github.com/allegro/ralph_pricing into release/2.0.0
Merge pull request #86 from kula1922/release/2.0.0

Release/2.0.0