Adding PG 9.1 support as an express thing.

Basically, slonik just needs to recognize it, and use the 8.4-based
schema.

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=slony1-engine.git;a=commitdiff;h=2584d8ddd3f5bd19b0897e696ce2371fab122331

Modified Files
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RELEASE             |    4 ++++
src/slonik/slonik.c |   10 +++++-----
2 files changed, 9 insertions(+), 5 deletions(-)