tooltip template fix thanks to @nhardy PR #213

show and hide tooltips on same event is now possible thanks to @leona…

…rd-thieu #208

now you can position tooltip also on top-left, top-right,bottom-left,…

…bottom-right thanks to @leonard-thieu #206 PR

fix for template-url-cache thanks to @leonard-thieu #204

new attribute tooltip-show, thanks to @zhangoose #203

fix for tooltip flickering , issue #194

fixs by @simonepri #193

closes #184

default vars thanks to @jogjayr

fix for template url cache by @kmoroder