fixed find_with_path_halving

svn path=/trunk/boost/boost/pending/disjoint_sets.hpp; revision=12848
new files

svn path=/trunk/boost/libs/disjoint_sets/; revision=14948
added #include for <vector>

svn path=/trunk/boost/boost/pending/disjoint_sets.hpp; revision=14968
init commit

svn path=/trunk/boost/libs/disjoint_sets/; revision=14977
*** empty log message ***

svn path=/trunk/boost/libs/disjoint_sets/; revision=15037
fixed broken link

svn path=/trunk/boost/libs/disjoint_sets/; revision=15121
cwpro8.3 workaround

svn path=/trunk/boost/libs/disjoint_sets/; revision=16133