Updated TiersVanilla with getTier() and naturalBlocks list.
TiersVanilla.java renamed Tiers.java and moved to be easily static accessible from anywhere.  Use Tiers.getTier(int)
RunecraftRune is given basic timer functionality, but is not preserving its blocks.
Added SigBlock as an easy way to keep track of BlockID and damage value together.
Runecraft Runix Vehicle is now working and tracking with player while active.  Toggle it by right clicking the center block.  You can jump up to travel up, just not down yet.  There's currently an exploitable block duplication bug.