Update 2012-10-19-data-discrepancies.md

Added section on what other analytics professionals say about data discrepancies. Added quote from Avinash Kaushik.
Adding a style for <cite>
Committing generated CSS
As part of the jekyll build process, generate CSS from SCSS files
Add an Avinash Kaushik quote to relieve data discrepancy questions
Merge pull request #56 from chuckjliu/patch-5

Update 2012-10-19-data-discrepancies.md