Log Message:
Changes 2.0.4:
* script syntax error
* Fixed memory corruption issue introduced in 2.0.3 with replicating large rows
* cloneNodeFinish() references the proper column in sl_sequence
* Newer versions of flex have changed yyleng from an int to a size_t
  instead of referencing the extern yyleng directly we use the function
  yyget_leng() and have added a configure check to confirm that the version
  of flex we use is not too old.
* Memory leak fixes
* Various documentation fixes
* cloneNodeFinish() called updateRelOid() that ws looking at wrong tab_id
  sl_sequence but the column is named seq_id.
* Fixed mistyped variable name in ShouldSlonyVacuumTable