beginning of PB transformations
renaming immutable.js library to boron.js, and transmuting existing references to "Boron" ; then changing all occurrences of "Puffball" to "PB" as part of migrating /core to a single namespace.
PuffData -> PB.Data
renaming Spec for consistency
PuffNet -> PB.Net
pulling PB.Crypto into its own file
pulling PB.Persist into its own file
encapsulating gridbox functions
new module namespace: PuffWardrobe -> PB.M.PuffWardrobe
PuffForum -> PB.M.PuffForum
PB.M.Puff* -> PB.M.*
minor changes
gridbox -> Gridbox
events -> Events