Update APR libs to 1.4.8, apr-utils to 1.5.2

these are the latest stable versions, 
this should improve portability and problems we have with platforms (Lin-Mac,32-64bit) and compilers. 

built with: 

apr-1.4.8:
./configure 'CFLAGS=-fPIC -g -O2 -pthread' 'CXXFLAGS=-fPIC -g -O2 -pthread' --enable-static --enable-threads
make
ar -rcs libapr-1.a `find . -name "*.o"`

apr-util-1.5.2:
./configure 'CFLAGS=-fPIC -g -O2 -pthread' 'CXXFLAGS=-fPIC -g -O2 -pthread' --with-mysql --with-apr=../apr-1.4.8/
make
ar -rcs libaprutil-1.a `find . -name "*.o"`