pgAdmin III commit: Make sure no query more than max size is stored...

Make sure no query more than max size is stored...

in the historic file.

The issue was that, if pgAdmin was killed, the last query, whatever its size,
remained in the histoqueries file. I changed the behabiour so that it can't
happen anymore.

Old behaviour:

When query is launched
Save query
When query is done
If unsuccessul
Delete query
If successful
If it's bigger than max size
Delete query
Else if already present
Delete the old one

New behaviour

When query is done
If successful
If it's less than max size
Add query
If already present
Delete the old one

Per discussion with Dave Page and Michael Willekes.

Branch
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REL-1_12_0_PATCHES

Details
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http://git.postgresql.org/gitweb?p=pgadmin3.git;a=commitdiff;h=7b48a5f03127457f9e2bb398d92aa0079d05573a

Modified Files
--------------
CHANGELOG | 2 ++
pgadmin/frm/frmQuery.cpp | 38 +++++++++++++-------------------------
2 files changed, 15 insertions(+), 25 deletions(-)