(xlv) stackoverflow ruby report

This is the ten most rated questions at Stack Overflow last week.
Between brackets: [question score / answers count]
Build date: 2013-03-30 20:20:40 GMT

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1. Tools for automatically simplifying regexes - [11/2]
2. Is CSRF Protection necessary on a sign-up form? - [10/3]
3. Grouping an array and get sum - [7/3]
4. Bracket notation on Ruby numbers - [7/1]
5. how and when are Ruby variables instantiated - [6/1]
6. Fork WEBrick and wait for start - [5/1]
7. Validate Japanese Character in Active Record Callback - [5/2]
8. Where does Ruby memory config go and how can one check if it is set? - [5/1]
9. why does local_variables return local variables that have not been assigned? - [5/2]
10. Verifying Django Password in Ruby on Rails gives non-matching password - [5/1]