You can use DB_UNKNOWN as a dbtype (as long as you don't use DB_EXCL) in dbopen,
and then it will load the flags from the file.

tokudb_dump
    Now supports duplicates/sorted duplicates.
tokudb_load will give a warning about any duplicate duplicate loads
    but will continue with the rest of the data.

Closes #148
Closes #166

git-svn-id: file:///svn/tokudb@1086 c7de825b-a66e-492c-adef-691d508d4ae1