Merging  bug # 237.
Merge of bug # 237, remove the truncate trigger from
a table when it is dropped from replication.
Cleanup of related code + adding a unit test.

Original patch from Jan Wieck, test from Chris Browne.

Branch
------
master

Details
-------
http://git.postgresql.org/gitweb?p=slony1-engine.git;a=commitdiff;h=6838c614d10368500abce2c12490935bdea0da3d

Modified Files
--------------
RELEASE                                            |    4 +
clustertest/regression/common_tests.js             |    2 +-
clustertest/regression/testtruncate/README         |    6 +
clustertest/regression/testtruncate/init_data.sql  |   29 ++++
.../regression/testtruncate/init_schema.sql        |   69 ++++++++++
.../regression/testtruncate/testtruncate.js        |  135 ++++++++++++++++++++
.../regression/testtruncate/truncate-237.sql       |    1 +
.../regression/testtruncate/truncate-basic.sql     |    1 +
.../regression/testtruncate/truncate-cascade.sql   |    1 +
.../regression/testtruncate/truncate-multiple.sql  |    1 +
clustertest/run_all_regression_tests.sh            |    2 +-
src/backend/slony1_funcs.sql                       |   17 ++-
src/backend/slony1_funcs.v83.sql                   |   24 ++--
src/backend/slony1_funcs.v84.sql                   |   48 ++++----
tests/testtruncate/generate_dml.sh                 |   12 ++
tests/testtruncate/init_add_tables.ik              |    1 +
tests/testtruncate/init_schema.sql                 |    8 +
tests/testtruncate/schema.diff                     |    1 +
18 files changed, 316 insertions(+), 46 deletions(-)