merge changes in 3.2.15 to trunk



git-svn-id: http://www.nlnetlabs.nl/svn/nsd/trunk@3789 a26ef69c-88ff-0310-839f-98b793d9c207
MSB is a 32bit constant.


git-svn-id: http://www.nlnetlabs.nl/svn/nsd/trunk@3790 a26ef69c-88ff-0310-839f-98b793d9c207
remove warning from compilers, & &&.


git-svn-id: http://www.nlnetlabs.nl/svn/nsd/trunk@3791 a26ef69c-88ff-0310-839f-98b793d9c207
4.0.0b2 tag for beta2.


git-svn-id: http://www.nlnetlabs.nl/svn/nsd/trunk@3793 a26ef69c-88ff-0310-839f-98b793d9c207