Update Readme section about Capybara.app
Update Readme section about Capybara.app

One of users [had a problem with it recently](http://stackoverflow.com/q/15665106/841064)
wenbofantasy/capybara,soutaro/capybara,randoum/capybara,jillianrosile/capybara,tjouan/capybara,ducthanh/capybara,mohanraj1311/capybara,DariaKalynovska/capybara,mlarraz/capybara,DariaKalynovska/capybara,twalpole/capybara,DariaKalynovska/capybara,jillianrosile/capybara,ksmaheshkumar/capybara,jillianrosile/capybara,wenbofantasy/capybara,pombredanne/capybara,randoum/capybara,mlarraz/capybara,mreinsch/capybara,pombredanne/capybara,Bartuz/capybara,olivierlacan/capybara,ksmaheshkumar/capybara,soutaro/capybara,mohanraj1311/capybara,khaidpham/capybara,ngpestelos/capybara,Bartuz/capybara,irfanah/capybara,ksmaheshkumar/capybara,gonzedge/capybara,twalpole/capybara,jnicklas/capybara,mohanraj1311/capybara,teamcapybara/capybara,ngpestelos/capybara,gonzedge/capybara,pombredanne/capybara,Bartuz/capybara,khaidpham/capybara,tjgrathwell/capybara,twalpole/capybara,tjgrathwell/capybara,y-yagi/capybara,shepmaster/capybara,randoum/capybara,sideci-sample/sideci-sample-capybara,ngpestelos/capybara,tjgrathwell/capybara,y-yagi/capybara,mreinsch/capybara,mlarraz/capybara,ducthanh/capybara,tjouan/capybara,shepmaster/capybara,ducthanh/capybara,soutaro/capybara,irfanah/capybara,teamcapybara/capybara,gonzedge/capybara,khaidpham/capybara,jnicklas/capybara,shepmaster/capybara,olivierlacan/capybara,y-yagi/capybara,tjouan/capybara,teamcapybara/capybara,jnicklas/capybara,irfanah/capybara,olivierlacan/capybara,sideci-sample/sideci-sample-capybara