Release 1.2.4

Bug fixed:

- security : a registered user could modify ad of other users by changing id in url

- unable to ad a new ad from front end because of submit button, it had no effect

- changing Price label by corresponding translation

- the currency symbol is displayed at the top of the price for the English version (with new language file entry CURRENCY DISPLAY)

Bug not fixed:

- Unable to post images when your provider dont set your file mask like this :  755 for directory and 644 for files. This problem is due to upload method of joomla API