Adding LibAddonMenu as a dependency
POC for adding a checkbox in the addon menu

It doesn't actually change the state, or persist, yet.
Now using SavedVariables for addon settings

Whether or not to display provisioning material levels in the tooltips is configurable.
Added the rest of the addon settings

Added checkboxes and corresponding SavedVariables to control the display of tooltip information for Woodworking, Blacksmithing, Clothing, and Enchanting.
Bumping the version number
Merge pull request #12 from jhegg/create-addon-menu-entry

Create addon menu entries