Textbox search button enabled or disabled as items are selected from the dropdown list
Results messages fixed. Avoid repeating operations when several paths are in the graph and they have common edges (no repeat edge operations).
Trying to fix HT results panel scrollbar
Replaced the results panel for a list (grid) in order to have a scroll always as necessary
Added support to backup the memcached cache with a simple mysql table in order to restore the backup after a computer rebooting. Every cache fault gets inserted into the memcached and the mysql database.