Move the Wiki metrics to the metric sub-package.
Add top-project metrics.
Add a method to get the project.
Read project IDs.
Fix minor typos.
Rename the error metrics.
Rename PatternBasedIdReader to RegexRecordReader.
Refactor the URI filters. Add a new filter for file upload.
Add a URI filter for POST, PUT entity calls.
Add a new metric for entity updates (which include file uploads).
Add logging to command line app.
Replace System.out.println() with logger.info()
Fix NPE.
Avoid repetitively looking up on null project.
Add a test to getProject().
Merge pull request #48 from eric-wu/master

Add top projects metrics and misc refactoring.