Installation issues for development environment (#1280)

* Installation issues

* Added ffmpeg

CONTRIBUTING.md

@@ -15,7 +15,7 @@ Next steps should work on clear Ubuntu 18.04.
 - Install necessary dependencies:
 
 ```sh
-$ sudo apt-get update && apt-get --no-install-recommends install -y nodejs npm curl redis-server python3-dev python3-pip python3-venv libldap2-dev libsasl2-dev
+$ sudo apt-get update && sudo apt-get --no-install-recommends install -y ffmpeg build-essential nodejs npm curl redis-server python3-dev python3-pip python3-venv libldap2-dev libsasl2-dev
 ```
 
 -   Install [Visual Studio Code](https://code.visualstudio.com/docs/setup/linux#_debian-and-ubuntu-based-distributions)
@@ -28,7 +28,7 @@ git clone https://github.com/opencv/cvat
 cd cvat && mkdir logs keys
 python3 -m venv .env
 . .env/bin/activate
-pip install -U pip wheel
+pip install -U pip wheel setuptools
 pip install -r cvat/requirements/development.txt
 pip install -r datumaro/requirements.txt
 python manage.py migrate

cvat-canvas/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "cvat-canvas",
-  "version": "0.1.0",
+  "version": "0.5.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

cvat/requirements/development.txt

@@ -7,7 +7,7 @@ pylint==2.3.1
 pylint-django==0.9.4
 pylint-plugin-utils==0.2.6
 rope==0.11
-wrapt==1.10.11
+wrapt==1.11.1
 django-extensions==2.0.6
 Werkzeug==0.15.3
 snakeviz==0.4.2