Set the environment variables for our tool. We have a rudimentary but working password panel now. Prettification later.

ApplicationController.m

@@ -65,6 +65,10 @@
 
 - (void)applicationDidFinishLaunching:(NSNotification*)notification
 {
+	// Make sure Git's SSH password requests get forwarded to our little UI tool:
+	setenv( "SSH_ASKPASS", [[[NSBundle mainBundle] pathForResource: @"gitx_askpasswd" ofType: @""] UTF8String], 1 );
+	setenv( "DISPLAY", "localhost:0", 1 );
+	
 	[self registerServices];
 
     BOOL hasOpenedDocuments = NO;