Zfs-autobackup

(This alpha release is just to allow me to test it with real world data, dont use it)

* --help output is split up in nice sections now.
* Moved documentation to wiki and split it up.
* Started working on an zfs-autoverify tool to actually verify your backups. (this took some refactorring and extracting common code to a ZfsAuto baseclass) Still work in progress.

This release fixes 153 .

Important if you have >255 datasets and rely on the exit code.

* Better strip path handling and collision checking. Now also support stripping so much it ends up on a pool-target. Fixes 102 and 117 .
* Strip-path mistakes should result in a much clearer error now.
* Added --force option (zfs recv -F) to allow 1:1 replication.

* Better strip path handling and collision checking. Now also support stripping so much it ends up on a pool-target. Fixes 102 and 117 .
* Strip-path mistakes should result in a much clearer error now.
* Added --force option (zfs recv -F) to allow 1:1 replication.

* Better strip path handling and collision checking. Now also support stripping so much it ends up on a pool-target. Fixes 102 and 117 .

Strip-path mistakes should result in a much clearer error now.

* Some fixes and improvements compared to v3.1.
* Snapshot format, zfs-property format and hold-format are now configurable via --...--format options. closes 87 and 68
* renamed --ignore-replicated to --exclude-unchanged. tidied up and removed seperate filter replicated step. fixes. 93, 95, 96
* added some common short options and changes to fix 88
* fix 103