Add ConnectionTimeout exception class.
Add ConnectionTimeout exception class.

donv/net-ssh,ab/net-ssh,zBMNForks/net-ssh,kevinmel2000/net-ssh,delameko/net-ssh,net-ssh/net-ssh,ccoenen/net-ssh,Teino1978-Corp/net-ssh,jefmathiot/net-ssh,dominics/net-ssh,askl56/net-ssh,causton81/net-ssh,thechile/net-ssh,mxDixon/net-ssh,mfazekas/net-ssh,TiagoCardoso1983/net-ssh,Eric-Guo/net-ssh,carlhoerberg/net-ssh