Adds support for Desktop Enty's Path

Fixes https://bugs.launchpad.net/linuxmint/+bug/1120639
Changes:
- Added appPath to ApplicationLauncher in easybutton.py
- Added new commandCwd argument to Exec in execute.py (defaults to None)
- ApplicationLauncher.execute() now passes CWD to execute.Exec

usr/lib/linuxmint/mintMenu/plugins/easybuttons.py

@@ -288,6 +288,7 @@ class ApplicationLauncher( easyButton ):
             self.appCategories = desktopItem.getCategories()
             self.appGnomeDocPath = desktopItem.get( "X-MATE-DocPath" ) or ""
             self.useTerminal = desktopItem.getTerminal()
+            self.appPath = desktopItem.getPath()
 
             if not self.appGnomeDocPath:
                 self.appKdeDocPath      = desktopItem.getDocPath() or ""
@@ -369,9 +370,9 @@ class ApplicationLauncher( easyButton ):
         if self.appExec:
             if self.useTerminal:
                 cmd = "x-terminal-emulator -e \"" + self.appExec + "\""
-                Execute(cmd)
+                Execute(cmd, self.appPath)
             else:
-                Execute(self.appExec)
+                Execute(self.appExec, self.appPath)
 
     def uninstall (self, *args ):
         Execute("gksu /usr/lib/linuxmint/mintMenu/mintRemove.py " + self.desktopFile)

usr/lib/linuxmint/mintMenu/plugins/execute.py

@@ -14,16 +14,25 @@ def RemoveArgs(Execline):
 	return NewExecline
 
 # Actually execute the command
-def Execute( cmd ):
+def Execute( cmd , commandCwd=None):
+	if not commandCwd:
+		cwd = os.path.expanduser( "~" );
+	else:
+		tmpCwd = os.path.expanduser( commandCwd );
+		if (os.path.exists(tmpCwd)):
+			cwd = tmpCwd
+	
 	if isinstance( cmd, str ):
 		if (cmd.find("/home/") >= 0) or (cmd.find("su-to-root") >= 0) or (cmd.find("\"") >= 0):
 			print "running manually..."
+			os.chdir(cwd)
 			os.system(cmd + " &")
 			return True		
 		cmd = cmd.split()
 	cmd = RemoveArgs(cmd)
+	
 	try:
-		os.chdir( os.path.expanduser( "~" ) )
+		os.chdir( cwd )
 		subprocess.Popen( cmd )
 		return True
 	except Exception, detail: