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The `conversion` and `interval` options have been removed. Their functionality
can be achieved with the new `default-page` option. The editor components have
been completely reworked, include autocompletion in more places and are now
based on version 6 of CodeMirror. An option `invert-income-liabilities-equity`
has been added to invert the numbers of those accounts on the income statement
and the balance sheet. This release also adds a Bulgarian translation and
features various smaller improvements and fixes as usual.