Merge 'sybase_asa' into 'trunk'

r22968@hlagh (orig r8502):  caelum | 2010-02-02 05:30:47 -0500
branch to support Sybase SQL Anywhere
r22971@hlagh (orig r8505):  caelum | 2010-02-02 07:21:13 -0500
ASA last_insert_id and limit support, still needs BLOB support
r22972@hlagh (orig r8506):  caelum | 2010-02-02 08:33:57 -0500
deref table name if needed, check all columns for identity column not just PK
r22973@hlagh (orig r8507):  caelum | 2010-02-02 08:48:11 -0500
test blobs, they work, didn't have to do anything
r22974@hlagh (orig r8508):  caelum | 2010-02-02 09:15:44 -0500
fix stupid identity bug, test empty insert (works), test DTs (not working yet)
r22976@hlagh (orig r8510):  caelum | 2010-02-02 14:31:00 -0500
rename ::Sybase::ASA to ::SQLAnywhere, per mst
r22978@hlagh (orig r8512):  caelum | 2010-02-02 17:02:29 -0500
DT inflation now works
r22979@hlagh (orig r8513):  caelum | 2010-02-02 17:18:06 -0500
minor POD update