- added some useful patches:

- added some useful patches:
> trash folder (and purge_message) - for deleting messages by moving to trash folder
> signatures_menu                  - menu for chosing a signature to add (or choose random)
> folder_columns                   - split folder browser into columns
> tag_prefix_cond                  - applying next action for tagged messages
- all patches from use contrib mutt links
- patch signatures_menu fixed to apply on our mutt
- release 5

Changed files:
    mutt.spec -> 1.108