* Use separate random number generator instead of the one that tokudb uses.
 * Don't use gettimeofday.  Instead look through the timestamps and use 1+ the max of the previous timestamps.  Increment whenever we need a new one.
 * Create a make rule to test it:  Do {{{make test_db_assoc3.tdbrun}}}
Addresses #162.


git-svn-id: file:///svn/tokudb@1095 c7de825b-a66e-492c-adef-691d508d4ae1