Homework1 submission from Detian; fastlm updated for timing again.

Hi Roger,
I updated my fastlm function, it is twice faster than last version. 
Could you please time it again. 
Thanks

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Hi Roger,
I have built the package "Homework1" with no warnings or notes.
The package source file and documents are under the directory "~\Homework1\".
It passed the unit tests on my computer. Could you please test it and let me know if it does not pass so that I can do the corrections? 
Thanks.