Set dependencies to 1.4.7-R1.x.

This needs more consideration, for backwards compatibility the pure-API
modules might compile against an older API version (defensively!),
while the API-only MCAccess might need an extra module compiling against
what it needs.
Add some initial values.
Prevent ascension over max jump phase for normal jumping/moving.

Adds a "dirty"-flag, set on receiving velocity. If a player still
ascends while exceeding max-jump-phase, a violation will be triggered,
regardless of the taken distance. This has not been tested against hacks
yet, and might well have little effect. It does aim against step and
block-jumping on protected regions, but there might be another limiting
method necessary to make this fully effective.