remove very ugly lexical_cast hack with a slightly less ugly one
replace MPL assert with static assert since it's problematic in C++11, refs #6846
simpler, more std-compliant implementation of cpp_regex_traits, refers #7143
undo problematic [79589]
fix compile error on some msvc test runners
fix assertion in cpp_regex_traits on libc++, thanks to John Fletcher
op::as shouldn't assume string::iterator != char*
only string iterators point to contiguous data
work around buggy wide ctype facet on cygwin and mingw
make regress and c_traits tests smaller by factoring out wide-char tests
work around missing __isctype on some glibc implementations
turn off debug symbols on msvc
make sub_match work with boost.range, doc tweaks
fix erroneous use of BOOST_CONSTEXPR config macro
work around strange msvc bug
comment typo, refs #7554
disable anoying msvc-11 warnings during tests
accomodate recent changes to boost's smart pointers, refs #7809
make symbols test pass on gcc with -Wall
remove unused variables, refs #8039