Changelog for hflags-0.4

-*-change-log-*- 0.5 (current development version) 0.4 Gergely Risko <gergely@risko.hu> 2013-10-03 * Add changelog file * Add documentation, test and temporary fix for orphanness issue * Fix HFlagC unused warnings in generated code 0.3 Gergely Risko <gergely@risko.hu> * Add undefindeOptions * Add Char support as flag value 0.2 Gergely Risko <gergely@risko.hu> * API change: the caller mustn't use parantheses around @initHFlags@ * New feature: dependent defaults, ability to compute some flags' default values based on the current values of other flags 0.1 Gergely Risko <gergely@risko.hu> * Initial release