Move IJulia globals into an init(ARGS) function that can be called from the kernel.jl file. This allows for IJulia precompilation.
Take off verbose logging
Merge branch 'jq/reorg2' of https://github.com/quinnj/IJulia.jl into quinnj-jq/reorg2

Conflicts:
	src/stdio.jl
Merge branch 'quinnj-jq/reorg2'