Merge pull request #40 from isra17/master

Fix VS2013 compiler error in Entity_test.cc
Merge pull request #41 from isra17/master

Add /MDd flag for MSVC debug target
Fix warnings(?) for implicit type conversions + headers in quick.h.

Fixes #43, #44.
Changes 64 bits family to fast 32 bits
Uses bitmask function to set bit