mac os poll bug fix for serial

git-svn-id: https://chuck-dev.stanford.edu/svn/chuck/trunk@410 82eca963-f7bb-46ef-a7c9-596d6f444fd3
serial io cleanup

git-svn-id: https://chuck-dev.stanford.edu/svn/chuck/trunk@411 82eca963-f7bb-46ef-a7c9-596d6f444fd3
gitignore
gitignore
authors file
Merge branch 'master' of https://github.com/spencersalazar/chuck