Remove debugs from Device::Network.
Create constant SUCCESS equals 0.
Extract methods from Main.rb to download and update Params.dat
Extract Helpers from Main.rb and add to Device::Helper
Create constant for return at Device::Transaction::Download.
Rename file_name to filepath at Device::Transaction::Download.
Implement tmp_file at Device::Transaction::Download to support dir at file path.
Fix file download, return if FILE_NOT_CHANGE is returned at binary.
Refactor get_rest_response_size.
Change methods puts/print/print_bitmap replace row and column defaults from 0 to nil.