Merge pull request #7 from wrathematics/master

rewrote git.jid, added option for reduced output
get.jid and LD_LIBRARY_PATH
Merge branch 'master' of https://github.com/snoweye/pbdMPI
remove api_tool.r from root
comm.split.by.node
FAQ updates
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Merge pull request #1 from snoweye/master

Updates