Consolidate send_query methods and add unicode checking.
Consolidate send_query methods and add unicode checking.

delameko/net-ssh,dominics/net-ssh,thechile/net-ssh,mfazekas/net-ssh,ccoenen/net-ssh,zBMNForks/net-ssh,Eric-Guo/net-ssh,net-ssh/net-ssh,askl56/net-ssh,TiagoCardoso1983/net-ssh,Teino1978-Corp/net-ssh,causton81/net-ssh,donv/net-ssh