Fix tooltip messy in joomla 2.x administrator

Issue description can be found here: https://redweb.atlassian.net/browse/RSLIDER-117
I am sorry but there is no need to put additional css to fix this problem...
The problem was in loading wrong scripts for different Joomla versions...
I have created PR that solves this problem here: https://github.com/redCOMPONENT-COM/redCORE/pull/344