Get rid of old wx event type usages. Use recommended replacements
Kill off _T and wxT macros

Minor other alterations that relate to above as well.

Also added the PanicAlertT version of alerts for some error messages that
use PanicAlert. We want the user to actually understand why the error
occurred.
Fix a typo in the JIT debugger window
Remove an unnecessary null check in CodeWindow.cpp.

The validity of ToolBar is checked at the beginning of the function
Merge pull request #376 from lioncash/wx

Wx cleanup