Added orange icon reference for messages of type 'alert'
Code block transfered to the footer overlay ( src/overlay/footer.inc.php )
Removed rm'd line and touched comments
Saving framework key, configuration filename and ctime to JSON file when configCheck() returns positive.

On re-entry, if a framework key is in a session var., the JSON file is reloaded and the configuration file ctime
is compared. If the file was not touched since last saved, verification is skipped.
Should have been called $flx_browser, the var produced by phpBrowscap
Added a boolean param to force unique key-value pairs inputs to loadJson() - applicable only when $flag = true.

When set to true, the resulting JSON will be a list of key-value pairs where values can be arrays
Documentation update for v-2.3.4