They work alongside Lisp-style ;; and {--}, without any #pragma.
Conceptually, a new syntax should be disabled by default
and activated using a special compiler option.
But now, we don't have an easy way to provide compiler options
in func-js, blueprint, etc.
Note, that introducing per-file #pragma is a wrong approach here,
since if we want to fire human-readable error on using '//' without pragma,
lexer should nevertheless work differently.
(this could be controlled by a launch option, but see above)
1. Updated block header, proofs now contain more data
Notice, that old proofs may become invalid in the future
2. Fixed message routing
3. Fixed block creator id in block header
4. Support for full proofs in tonlib
5. Support for partial state download
6. Some other bugfixes
