Imported Upstream version 3.0.0~20120426
Merge tag 'upstream/3.0.0_20120426'

Upstream version 3.0.0~20120426
Snapshot release 20120426
Imported Upstream version 3.0.0~20120510
Merge tag 'upstream/3.0.0_20120510'

Upstream version 3.0.0~20120510
Snapshot release 20120510
Imported Upstream version 3.0.0~20130309
Remove deprecated ledger-el

The ledger-el Emacs mode has been deprecated in favor of the new
ldg-mode.
Use CDBS for build script
Add new dependencies
Remove references to old documentation and install manpage
Add patch for modifying version number
Enable python