There are now six man pages, one for each main executable and file
format, generated from markdown by the mighty pandoc. They are basically
the content of the user manual, split up and moved into the appropriate
package directory. I've also committed the generated man files.
The man pages' markdown source (hledger/hledger.1.md,
hledger-lib/hledger_journal.5.md etc.) are now the master documentation
files. The plan is to concatenate them (with a little munging) to form
the all-in-one user manual for the website, at release time. This also
separates the hledger.org user manual from the latest doc commits, which
should simplify website management.