Merge pull request #24 from ledgersmb/1.4

sync over 1.4 branch
Merge pull request #26 from ledgersmb/1.4

sync over 1.4 branch
Merge pull request #28 from ledgersmb/1.4

sync over 1.4 branch
Follow up to (dd0565e2f8e6) fixing up the logic identifying tax accounts
 when reversing manual taxes.
(grafted from 854ff1bf7e149f4734b32bcc7936a573bad5421f)

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extra : source : 854ff1bf7e149f4734b32bcc7936a573bad5421f
Merge pull request #137 from ehuelsmann/1.4

1.4: Follow-up to manual tax reversal