fix library path
Revert "fix library path"

This reverts commit f0f6c40a8c964e9209261897180b78114bba848c.
Revert "replace libapr by apr"

This reverts commit 37e76b1626b92f41be1e480528bb00a41ff9f8e6.
add expat-2.1.0
add .sln/.vcxproj files for Visual Studio 2010