We're currently exitting with error code 0 when displaying the usage
information on build scripts, which means that if the user forgets or
mistypes an option argument, the script will carry on its way.
Signed-off-by: Juan Cruz Viotti <jviotti@openmailbox.org>
Previously, the build scripts would override the top level
`node_modules` and `bower_components`. After this commit, the
dependencies are installed directly in the Electron package.
Signed-off-by: Juan Cruz Viotti <jviotti@openmailbox.org>
