v5.5.4 Beta #1

*Refactored API, removing core interfaces and adding more descriptive
javadocs.  MDK users, be prepared to update.
*Fixed differing progress not being recognized.
*Fixed Theoretical Elementizer displaying incorrect progress.
*Made IGasStorage work in both items and blocks -- IStorageTank extends
this now.
*Better storage tank code.
*Loads of reformatting and added missing javadocs.