Improve logging for Alire

For eng/ide/gnatstudio#30

Author: AnthonyLeonardoGracio

kernel/src/gps-kernel-remote.adb

@@ -824,7 +824,9 @@ package body GPS.Kernel.Remote is
          end if;
 
          if Active (Me) then
-            Trace (Me, "Spawning");
+            Trace
+              (Me,
+               "Spawning in directory: " & Get_Current_Dir.Display_Full_Name);
 
             if Args /= null then
                for J in Args'Range loop

share/support/core/alire.py

@@ -352,7 +352,7 @@ def on_project_changing(hook, file):
     root = find_alire_root(file.path)
 
     if root:
-        GPS.Logger("ALIRE").log("Alire manifest detected!")
+        GPS.Logger("ALIRE").log("Alire manifest detected at: %s" % file.path)
         project_to_reload = (file.path, root)