pgAdmin III commit: Fix a number of synonym related issues:

Fix a number of synonym related issues:
- A crash when opening the new synonym dialog on PPAS 8.3r2.
- Labelling of the target type in the properties list.
- List only unique procedure/function names as possible targets.

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=pgadmin3.git;a=commitdiff;h=ff3b8d4278c248fc39dcf8333ad514f32885c345

Modified Files
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pgadmin/dlg/dlgSynonym.cpp           |   45 ++++++++++-----------------------
pgadmin/schema/edbPrivateSynonym.cpp |   17 ++++++++++---
2 files changed, 27 insertions(+), 35 deletions(-)