I think template haskell is robust enough now across platforms
that this will work.
Motivation: file-embed gives us better dependency tracking: if a data
file changes, ghc/stack/cabal know to recompile the Data module.
This also removes hsb2hs as a build dependency.
* New module: Text.Pandoc.Writers.Ms.
* New template: default.ms.
* The writer uses texmath's new eqn writer to convert math
to eqn format, so a ms file produced with this writer
should be processed with `groff -ms -e` if it contains
math.
This way we have uniform separators, whether on Windows or Linux.
This should solve a problem where on some Windows versions
the data files weren't being found.
Closes#2459.
* Instead of defining readmeFile in Text.Pandoc.Data (which we forgot
to export anyway), we simply add a record for "README" to the
`dataFiles` lookup table. This allows simplifying some of the code
for `readDefaultDataFile` in SHared.
* As a bonus, `pandoc --print-default-data-file README` now works.
This change adds `--man1` and `--man5` options to pandoc, so
pandoc can generate its own man pages.
It removes the old overly complex method of building a separate
executable (but not installing it) just to create the man pages.
The man pages are no longer automatically created in the build
process.
The man/ directory has been removed. The man page templates
have been moved to data/.
New unexported module: Text.Pandoc.ManPages.
Text.Pandoc.Data now exports readmeFile, and `readDataFile`
knows how to find README.
Closes#2190.
