Fix promise::set_exception

Wrong set_exception function version was chosen if exception_ptr passed
as a parameter.
Introduce YAMAIL_USE_RVALUES macro
Add some tests for future_group
Merge pull request #3 from yandex/future_group_tests

Add some tests for future_group
fix exception handling in future

future retains exception types
Temporarily import boost/tti lib.
Remove debuting and buggy code
Use std::exception in c++11 mode.
Free version
Add print cmake configuration message
Add boost/tti files into package
Disable broken zerocopy unit test
Fix type detection of rethrowed exceptions

Add unit test promise.catch_rethrowed_user_error for this case