update boards to use through2
update threadstream to work with through2
fix boardstream and test to use through2.obj()
update through variable name to through2
update threadstream and test to use through2.obj

also changed naming to through2
postStream now uses through2
update package to include through2 instead of through
update gitignore
epochImperter through2 implementation
epochImporter now uses async
Merge pull request #1 from unenglishable/through2async

Through2async