cd into build dir to perform app-related actions

Author: HashNuke

bin/compile

@@ -100,6 +100,9 @@ cd -
 ln -s ${elixir_root} /app/elixir
 PATH=/app/elixir/bin:$PATH
 
+# Enter build dir to perform app-related actions
+cd ${build_dir}
+
 # Unset this var so that if the parent dir is a git repo, it isn't detected
 # And all git operations are performed on the respective repos
 unset GIT_DIR