Release ledger2beancount 2.3 * Improve speed of ledger2beancount significantly * Improve parsing of postings for accuracy and speed * Improve support for inline math * Handle lots without cost * Fix parsing of lot notes followed by a virtual price * Add support for lot value expressions * Make parsing of numbers more strict * Fix behaviour of dates without year * Accept default ledger date formats without configuration * Fix implicit conversions with negative prices * Convert implicit conversions in a more idiomatic way * Avoid introducing trailing whitespace with hledger input * Fix loading of config file * Skip ledger directive `import` * Convert documentation to `mkdocs`