[evol] reorganized config/includes a bit
[evol] added custom doc rake rule using a proper template without frames, good for Redmine Embedded plugin
[fix] require 'gettext/utils' only in the needed tasks, as it break other tasks (like 'doc:app'
[fix] mm_to_cm() util function was buggy and eated floating parts
[RM] increase version a bit, as the basic public interface is begining to work well
[evol] language can be forced in the user admin page (closes #6) (no user interface yet)
[evol] updated URLs in 'About' submenu
[evol] move i18n rake tasks into an adequate namespace
Initial version