Changes for MSVC compatibility
Fixed a bug which stores the const reference to a temporary object.

The bug caused the mfast_test with MSVC release build to fail.
Workaround to avoid manually setting BOOST library path to Windows PATH environment variable
Merge branch 'master' into fast-1.2

Conflicts:
	CMakeLists.txt
	src/mfast/field_comparator.h
numerous fixes for MSVC warnings
Fixed bug for setting absent decimal exponent initial value.
Merge branch 'master' into HEAD