made test folder & renamed example
updated readme & example

removed some redundant code & added logging
client module ready for beta
added some error handling

if update file already exists it deletes it then moves the newly
downloaded file
client module almost working

debug sig mismatch
Merge branch 'dev-tests' into dev
ready to merge
Merge branch 'dev-debug-sig-mismatch' into dev
Merge branch 'dev'