pgAdmin III commit: Make sure menubar's and toolbar's items are enabled

Commit: http://git.postgresql.org/gitweb?p=pgadmin3.git;a=commitdiff;h=d40400ca381df7fd5b82a0248b02b8e6fabccbb9

Log Message
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Make sure menubar's and toolbar's items are enabled/disabled as appropriate when selecting a server's group, per a
reportfrom Steffen Kuhn. 

Branch
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master

Modified Files
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CHANGELOG              |    3 +++
pgadmin/frm/events.cpp |   21 +++++++++++++--------
2 files changed, 16 insertions(+), 8 deletions(-)