added joel wellings environment variable for setting num of cores
Warp tutorial made coherent with basic tutorial
Merge pull request #134 from cerquide/warp_doc_fix

Warp tutorial made coherent with basic tutorial
typo fix
Merge pull request #135 from hupili/doc

some typo fix in docs. thanks hupili for fixing!
fixed output in svd++
Merge branch 'master' of https://github.com/graphlab-code/graphlab
Merge branch 'master' into partial