Collect SLOC and update ReleaseFilepaths with them.

[andymeneely]

We need a new data source for ReleaseFilepath - SLOC (source lines of code). This means we need to actually collect new data and add it to run:slurp. Here's what needs to be done:

• Write a bash script for lib/scripts that calls cloc on the current directory to count the lines of code. Output that to a CSV file
• Clone the Chromium git repository using this command: git clone https://chromium.googlesource.com/chromium/src.git ~/chromium/src
• Run the bash script on the root of the chromium git tree to get the SLOC into a CSV file - let me know and I'll run it and put it in the production data. You'll need to check out the git repository to Chromium 11, which is git revision c1bf8951e07a42ecc493ed2e4481211dabbc5f61
• Write a new loader that will update ReleaseFilepath after it's been loaded and optimized.
• Chop down the SLOC so it just includes the test data for release filepath
• Get some sample SLOC data for dev and commit that.
• Write a verify that it got loaded into ReleaseFilepath okay.

[andymeneely]

I got this working on test, so it should be good.