Take in account pos_infinity.
Merge branch 'develop'
Fix compilation on Windows

Corrected is_special method name.
Merge pull request #6 from Lastique/patch-1

Fix compilation on Windows
Merge branch 'develop'
Complete sync queues reference doc.
Update last fixed bugs.
Update compliance to standard proposals.
Added asynchronous executors doc.
Fix documentation for shared_future example
Merge pull request #7 from kylelutz/fix-futures-doc

Thanks for the signaling this typo.
Merge branch 'develop'
sync_deque.hpp sync_deque.cpp finished
add sync_deque2.cpp & sync_deque2.hpp