ItemDataCache 1.12 fix for WoW patch 2.4.2

Summary:

Fixes errors in ItemDataCache v1.12, which were caused by World of Warcraft patch 2.4.2

This is not a complete AddOn, it is a single "drop-in" replacement file.

Installation:

Ensure that you already have ItemDataCache version 1.12 installed (if you have an earlier version, please download and install the upgrade; if you have a later version, this patch is probably not required!)

Copy the ItemDataCache_Scan_Tooltip.lua file from this .zip file into your ItemDataChache folder (overwriting the exisiting file).

Notes:

- Should correctly create patterns patternItemSpellCharges and patternItemSpellChargesP1 for any language client
- Implemented checking for "No Charges"