Added new role manager class from AisisCore

Added new Role manager class freom AisisCore

[Branch: dev1.2.6]
We reset on theme change.

We now reset on theme change - the roles are all reset. We also
removed the delete_option function from the reset for options as the
role manager class does this for us.
Switched around Amin Options and Misc Options tab

[Branch: dev1.2.6]
Fixed Grammar issue

[Branch: dev1.2.6]
Brought in new roles manager class

[Branch: dev1.2.6]
Renamed the Ajax.php

Renamed the Ajax.php to better suite the actual file contents and functions.

We also changed aisis_options to aisis_upload_options

[Branch: dev1.2.6]
Updated Options Function and Caled in New Ajax.

Updated the aisis_upload_options validator tonow validate the selected
themes and packages and save them into aisis_upload_options.

Also managed to call in the new Admin Ajax function file.

[Branch: dev1.2.6]
Deleted Ajax.php

[Branch: dev1.2.6]
Added new message about disabling

Added a new message for disabling themes and packages.

[branch: dev1.2.6]
changed aisis_options to aisis_upload_options

[Branch: dev1.2.6]
removed var_dump

[branch: dev1.2.6]
Fixed Package loading.

We now chck the aisis_upload_options for the package name were looking for.

[branch:  dev1.2.6]