pgAdmin III commit: Avoid the most serious side effects of the debugger

Avoid the most serious side effects of the debugger plugins inability
to handle direct debugging and global debugging of the same function at
once. There are still some weird side effects (like debugging being split
between two sessions), but it doesn't crash and burn. A more complete
fix requires plugin changes, so we need to be able to cope with this at
the client side as gracefully as possible to allow for older plugins.

Branch
------
master

Details
-------
http://git.postgresql.org/gitweb?p=pgadmin3.git;a=commitdiff;h=35030574c4807be799e02c14291aecfa9cf835b8
Author: Ashesh Vashi <ashesh(dot)vashi(at)enterprisedb(dot)com>

Modified Files
--------------
pgadmin/debugger/dbgController.cpp | 38 +++++++++++++++++++-----------
pgadmin/debugger/dbgEvents.cpp | 3 +--
pgadmin/debugger/frmDebugger.cpp | 8 ++++++-
pgadmin/include/debugger/dbgController.h | 3 ++-
4 files changed, 34 insertions(+), 18 deletions(-)