Updated version of cpplint, silenced several warnings to keep the spam down.
Made check_style.sh actually call cpplint, not cpplint2.
Fixed an indentation.
Made a for loop use braces, not a semicolon.
Made outdated_index.hpp include <list> once.
Removed an indentation.
Reenabled non-const reference checking in check_style.sh, fixed newly discovered problems.
Removed TODO about whitespace/forcolon.
Fixed the remaining non-const references.
Fixed some indentation problems.
Reenabled runtime/explicit style checks and fixed newly discovered problems.
Removed readability/braces disablement from check_style.sh.
Put in a bunch of comments marking the end of namespaces.
Removed build/include_what_you_use nolint declarations.
Removed a bunch of untagged NOLINT comments.
Merge branch 'next' into sam_update_cpplint
Made check_style.sh include .h files.