The package version must be incremented for each new WebOS
release, due to the device needing a new version to install.
Whenever the ScummVM version is raised, this can be reset to 0.
Changing to 0 in anticipation of ScummVM 1.4.0.
On Mac OS X (Darwin), there are minor differences in the 'sed'
and 'install' tools that require slightly different usage. This
distinction has been made in webos.mk, made possible by an
additional flag in ./configure.