Added VS14 build file.
Replaced all use of constexpr with BOOST_CONSTEXPR
Apart from many ICEs in VS14 CTP3, now compiles cleanly :)
Worked around the first MSVC ICE in both VS2013 and VS14 CTP1, it doesn't like returning a template alias from a function.
Fixed the other MSVC ICE, but now have quite a few failing tests.
Turned constexpr on for VS14 CTP 3, and went through and manually fixed up use of relaxed constexpr as VS14 CTP 3 only implements the 11 constexpr.
Backed out the BOOST_EXPECTED_RELAXED_CONSTEXPR as I don't think it's needed anymore. Most of the unit tests now compile and pass, the only thing really remaining is to manually fix up rebinds as MSVC has broken template alias semantics.
WiP
Finished refactoring bind for MSVC.
Wahey, we are ported successfully to VS14 CTP 3!
Reverted BOOST_EXPECTED_CONSTEXPR
Accidentally broke BOOST_EXPECTED_CONSTEXPR_IF_MOVE_ACCESSORS
Reverted lots of changes Visual Studio did for me.
Updated Readme with VS14 support.
Made BOOST_EXPECTED_NO_CXX11_MOVE_ACCESSORS on for GCCs before v5.0.
Bad config for pre-VS14 MSVC's
Merge pull request #69 from ned14/master

VS14 CTP 3 support