Merge pull request #4 from vijakshay/vij

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Merge pull request #5 from vijakshay/vij

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Merge pull request #6 from vijakshay/vij

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Merge pull request #7 from vijakshay/sreeta

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Incorporate GPS accuracy in algorithm
Andrew's data: 02/07/14 and 02/10/14
Merge branch 'master' of https://github.com/vijakshay/Travel-Diary
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Resolving merger conflict
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Update documentation on data collection