Fixing bug on installation b4a cli

The script currently based on back4app/parse-cli to installation b4a cli don't correctly run on docker machine with node:alpine, because uname -p return unknown, so I've decided to create my own script to installation b4a cli using uname -m.

Fixing apk world[python] installation error

v3

fix: change python instalation to python2

Fixing bug when run './script.exp'

Deploy application to back4app using only project name and accountkey, this actions will be run when folders [public, cloud (something similar)] and .parse.project and .parse.local exists.