implement -init in NOStore
added main context to server example

working on #33
finished creating main context on server
optimized NOServer to work with new NOStore

optimized NOServer to work with new NOStore implementation
example server app uses main context
fixing NOStore, NOServer context errors

also optimizing NOServer
made NOServer properties nonatomic

should only modify properties when the server is turned off
fixing more NOStore, NOServer inconsistencies

due to multi context implementation