PHP 5.2 (which is required) defines json_{en,de}code.
Clean up redundant go() helpers.
Contact::goAlert becomes ::error_go.
Nit
Move tagg_ functions into a class Ht.
Move paperOptions() into class PaperOption.
Correct handling of defaultScoreSort.
Add CsvGenerator helper class.

Moving away from generic helpers in Code/helpers.inc.