Rename the configuration file `assemble.ml' to avoid confusing the user.

Fix #14
Add a missing configure.ml -> assemble.ml rename
Support for partial/public documentation

Fix #16
Allow to generate the full documentation when needed (ie. bypass the doc_public field)

Fix #16
Merge pull request #19 from samoht/assemble.ml

Rename the configuration file `assemble.ml' to avoid confusing the user.