Small fixes in Dockerfile, requirements and setup.py

Adds envs in Dockerfile
Adds version_command in setup.py
Cleans unused deps in requirements.txt

Signed-off-by: Benjamin Diaz <bdiaz@whitestack.com>
diff --git a/.gitignore b/.gitignore
index d994eb7..d12e438 100644
--- a/.gitignore
+++ b/.gitignore
@@ -76,4 +76,7 @@
 .settings/
 __pycache__/
 .idea
-*.db
\ No newline at end of file
+*.db
+
+deb_dist
+*.tar.gz
\ No newline at end of file