changed config filename and added some comments
resetting the focus correctly now
fixed ugly grey square appearing upon opening DockingDlg
moved VersionInfo to it's own resource
fixed an issue with initialise_go_cmd function

it also searches the path for go.exe now and checks wether it runs
and terminates with 0.

ErrorMessages also go to a separate file now to keep things tidy.
Version 1.1 of GOnpp

The initialise_go_cmd function checks falls back to PATH if no
GOROOT and no GOBIN are set, and gives a more descriptive error
message.

The file saving/reloading functions are in their own file now.

Setting the focus back after running a command works correctly now.

The funny grey area now only shows on the very first showing of the
dockable dialog.