Haha, IN YOUR FACE, Mailbox !
This way, both win32 and unix users are satisfied.

MailboxVector is already defined in mailbox-vector.h

The files must be distinguished:
- mailbox.hxx and mailbox.t.cpp are templates for resp. the header
and the source
- mailbox-vector.h/cpp correspond to an implementation of the
template for a maal::vector. Those are the symbols exported in the
library mailbox-vector.so/.lib
- test_mailbox corresponds to the test of Mailbox<maal::vector>

Simplified the unit test test_mailbox that previously *required user input*.

Added pthread library and compilation & link flags.
Corrected multiple small bugs.
Added CMakeModules for pthread and boost numeric bindings.
Corrected some tests.

Some commands modify the compilation/linkage flags of every pkg added after.
 e.g. ADD_DEFINITIONS, INCLUDE_DIRECTORIES and LINK_DIRECTORIES.
Applying these commands in a loop FOR_EACH can create a huge and redundant list
of compilation/link flags.
Placing them before the for_each is then a cleanup operation (only): it does
not modify the flags order

This reverts commit 192c38d4.

This reverts commit 1914a678.

This reverts commit 71b5060e.

This reverts commit 9e6a0325.

This reverts commit 9a9d1453.

This reverts commit 793a089d.