Redefining clickLink in MinkContext is a regression

[Nek-]

Hello,

You redefined clickLink in the MinkContext, I don't really know why... But this is a huge regression as the method from the mink extension also allows to match title (alt, etc) (which is clever when the link is a ckeck mark or just empty with CSS).

I suggess to simply remove this method from friendlycontext. What do you think about ?