Providing aliases for all of the supported options
-h, --host
-s, --subdomain
-l, --local-host
-o, --open
-p, --port
--help
--version
Minor clean up in the code removing the blocks that already handled
by yargs ( version, help and required options )
Handle validating that the passed port could be validated as a number
Remove the spaces in empty lines
add open param; opens url in your browser after localtunnel is launched
update package version
multiplatform open with openurl package
update package.json
correct source code spacing & indentation
update openurl dependency
revert package version
move require('openurl') to the top, correct 4 spaces indentation
