Log Message:
mblaze: update to 0.5.

* New tool msearch to wrap several mail indexers.
* New zsh completion _mblaze.
* mnext/mprev were removed (you can call `mless +`/`mless -`).
* The GnuPG tools in contrib/ now use gpg2.
* mshow exits with error if it could not extract all attachments
* mrep: add -noquote to disable quoting the message replied to
* mdeliver: keep permissions of messages
* mcom: aborting the editor is now more like delete than cancel
* mcom: add -send to send directly without editing
* mcom: check if mail is formatted sensibly
* mpick: new flag -v for statistics
* mscan: new flag -v for statistics
* magrep: add -h, which is like -p but doesn't print the file name
* mscan: prioritize displaying trashed mail over other markers
* mpick: fix off-by-one in expression parsing
* Many bug fixes