pgAdmin III commit: Add support for 9.1 ALTER TYPE new syntax

Add support for 9.1 ALTER TYPE new syntax

I changed the Add/Change button with two buttons (Add and Change). The rest of
the patch is used to allow the change on an existing type if we are connected
to an 9.1+ release.

Rather than trying to detect new. removed, and modified members, I simply drop
all the old ones and add all the new ones. Much simpler, same results, and
hopefully less bugs.

Implements #242.

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=pgadmin3.git;a=commitdiff;h=121452cb3ffdd3bc488a6d67cbe1b61a8661f620

Modified Files
--------------
CHANGELOG                     |    2 +
pgadmin/dlg/dlgType.cpp       |  161 +++++++++++++++++++++++++++++++----------
pgadmin/include/dlg/dlgType.h |    2 +
pgadmin/ui/dlgType.xrc        |   34 +++++-----
4 files changed, 144 insertions(+), 55 deletions(-)