Templates are now directly in dune's sexp language. The syntax is change to %{}
from ${} and $(). Old templates are still supported in jbuild files.
Other changes in this PR:
* Removal of ! patterns in variables
* Strict expansion for templates in dune files. Missing vars are now an error
* Using the correct syntax to parse included files in dune
* Improvements to the tests
* Syntax aware pretty printing of sexps. Now you must pass Dune vs. Jbuild to
print sexps
Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>
Rudi Grinberg
Jeremie Dimino
Etienne Millon