Update JabRef_zh.properties translation.
Update JabRef_zh.properties translation.

Braunch/jabref,tschechlovdev/jabref,mairdl/jabref,bartsch-dev/jabref,JabRef/jabref,sauliusg/jabref,obraliar/jabref,jhshinn/jabref,grimes2/jabref,tschechlovdev/jabref,oscargus/jabref,ayanai1/jabref,grimes2/jabref,Mr-DLib/jabref,shitikanth/jabref,JabRef/jabref,motokito/jabref,zellerdev/jabref,Siedlerchr/jabref,obraliar/jabref,grimes2/jabref,mairdl/jabref,Braunch/jabref,motokito/jabref,jhshinn/jabref,tschechlovdev/jabref,zellerdev/jabref,shitikanth/jabref,bartsch-dev/jabref,obraliar/jabref,tschechlovdev/jabref,jhshinn/jabref,tobiasdiez/jabref,grimes2/jabref,ayanai1/jabref,JabRef/jabref,mredaelli/jabref,bartsch-dev/jabref,oscargus/jabref,jhshinn/jabref,sauliusg/jabref,shitikanth/jabref,jhshinn/jabref,sauliusg/jabref,zellerdev/jabref,shitikanth/jabref,mredaelli/jabref,zellerdev/jabref,shitikanth/jabref,Braunch/jabref,oscargus/jabref,ayanai1/jabref,mairdl/jabref,ayanai1/jabref,obraliar/jabref,oscargus/jabref,tobiasdiez/jabref,Siedlerchr/jabref,Mr-DLib/jabref,Siedlerchr/jabref,tobiasdiez/jabref,mairdl/jabref,mredaelli/jabref,Mr-DLib/jabref,oscargus/jabref,JabRef/jabref,grimes2/jabref,tschechlovdev/jabref,ayanai1/jabref,bartsch-dev/jabref,motokito/jabref,Braunch/jabref,Mr-DLib/jabref,obraliar/jabref,sauliusg/jabref,mredaelli/jabref,Braunch/jabref,Siedlerchr/jabref,mredaelli/jabref,mairdl/jabref,zellerdev/jabref,motokito/jabref,tobiasdiez/jabref,Mr-DLib/jabref,motokito/jabref,bartsch-dev/jabref