Show shortcut keys on popup/context menus
And again.
And so on.
Simplified a bit.
More commenting + header adding, should be the last of it
Fix entry not opening on first focus
Added a missing "MapBackground" property to the config.
Merge pull request #147 from Blue-Shadow/master

Added a missing "MapBackground" property to the mapinfo config.
Changed the way window size/position saving works

Now uses a new 'window_info' section in the config rather than cvars, which will allow the feature to be extended to other windows/dialogs without needing to add a bunch of extra cvars.
Remember the size of various dialogs between sessions

Added new 'SDialog' base class similar to STopWindow, but for dialogs, which automatically uses saved window size info
Merge branch 'master' of https://github.com/sirjuddington/SLADE.git
Fix saving of UDMF sectors with 0 light level
Don't save map launcher dialog size for now, doesn't work correctly

...because it can either show the map list+preview or not
The plus key char is no longer different in windows and linux, apparently
Disable the script editor if the current game configuration doesn't support scripting
Fix assert in BrowserWindow class

Opening of Things Browser no longer triggers this assert within wxWidgets:
src/generic/treelist.cpp(1128): assert "col < GetColumnCount()" failed in DeleteColumn(): Invalid column index
Merge pull request #149 from alexey-lysiuk/fix_assert

Fix assert in BrowserWindow class
Merge branch 'master' of https://github.com/sirjuddington/SLADE into Music