chore: make use of browserify as a development dependency (#1354)
chore: make use of browserify as a development dependency (#1354)

This is causing all the snapshot builds to fail when a PR is merged to
master.

Signed-off-by: Juan Cruz Viotti <4148f5869aa1bcd7efd85b513a5874967e585032@openmailbox.org>
resin-io/etcher,resin-io/herostratus,resin-io/etcher,resin-io/etcher,resin-io/resin-etcher,resin-io/resin-etcher,resin-io/etcher,resin-io/herostratus,resin-io/etcher