reformatting DescriptionFactory.cpp
fix several errors reported by OCLint:

- rename variable with short name
- fix inverted logic
- rename members in SpeedProfile
even more reformatting
reactivate software-based CRC32 on x64 platforms without SSE4.2
refactoring of IteratorBasedCRC32, fixes #1140
make dummy __get_cpuid available on Windows
apply some reformatting
replace boost::variant w/ mapbox::util::variant
initial checkin of mapbox::util::variant
remove remnants of boost::variant
use Nov 2013 CTP to build
replace nmake by msbuild
use explicit OSRM.sln filename
use 64bit cmake generator
make integer literals static const instead of constexpr
make msbuild less verbose
make canary static const instead of constexpr
remove constexpr workaround as minimum req. is now Nov 2013 CTP
fast forward variant lib
build test target explicitly on AppVeyor