Changes to the parser versioning scheme

It seems like the versioning scheme is a mess right now. Stricter
rules should probably be enforced when receiving the data, but as
of now, GApps also have a seperator dot between minor and maintenance
versions so we have to account for it possibly being there.
Update the goo.im JSON endpoint

Recently, goo.im pushed an update for their JSON API. The location of
the endpoint used by the application was moved around (making SSL a
requirement) and the output returned by the call also got changed.

It should be noted that this commit does not make downloads of GApps
packages possible as the CDN requires a token which changes all the
time and is generated using a private key (held by goo.im) instead
aiming to get rid of the pesky error toast notifying about the update
checker failure.