Haiku port.
Merge pull request #200 from rgsilva/master

Haiku port
- Allow module to import types
Merge remote-tracking branch 'upstream/master'
- Fixed bug on parameter order when making some call on argument list
Function call test added
Function call test added
- Fixed release build
- Fixed compiler warning
Merge remote-tracking branch 'upstream/master'
Bug with thread creation fixed
Fixed race condition in Thread creation
Using std::vector to m_thread_pool
Fixed race condition when a thread call more than one user function
Thread test added
Thread test added
Merge branch 'master' of https://github.com/clever-lang/clever