Create a Kernel object and expose instance to the interpreter.
Create another scala interpreter instance for kernel object to use for "eval"
Tests for Kernel eval
Removed invalid test (init of SparkIMain moved to trait)
Extended timeout for test (occasional failures on my machines) - need to determine a better solution
Fixed some spacing in bootstrap, updated kernel class to expose interpreter
Updated timeout of magic test (added TODO about refactoring)
Merge pull request #9 from bpburns/master

Add Kernel object and make it available for interpreter