Added "Insert...", "Extract...", "Insert from 'data' Folder..." and "Extract to 'data' Folder..." menu items under the "File" menu
"Select All" now works on MPQ archive window and on TBL Editor window
Fixed Search for Cain quest bug, where if the quest was completed and you edited you character after that, you were able to get another ring from Akara by speaking with her...
MPQ handling has been totaly rewritten and should be much more reliable now
A "(listfile)" file is now maintained in a MPQ archive
Added error message when trying to add a .txt file which is already opened by another application
Added basic xxx.dc6 files viewing (simply open them!). But some files are known to be badly displayed...
