menu_breadcrumb 6.x-1.2

Fixes for (at least):
* #303247: Menu Breadcrumb setting active menu to undesirable menus
* #595282: Menu weights
* #595244: hook_enable() and hook_disable() are mis-used. Replace with hook_uninstall()
* #344449: Double-escaped strings causing improper output of special characters

The most significant of these is the menu weighting system in #595282: Menu weights which attempts to resolve issues with the menu system and interaction with other modules. Post-upgrade, you should check Settings => Menu Breadcrumb and ensure that the correct menus will be used for generating breadcrumbs.