Switch back to non-persistent selenium sessions.
Switch back to non-persistent selenium sessions.

This is a bit slower, but prevents tests from accidentially influencing each other, and restores the possibility to have more than one session in parallel in a test file.

mburggraf/otrs,s7design/otrs,xhoy/otrs,xhoy/otrs,rudy500/otrs,xhoy/otrs,crythias/otrs,mburggraf/otrs,crythias/otrs,mburggraf/otrs,s7design/otrs,MBRG/otrs,mburggraf/otrs,MBRG/otrs,rudy500/otrs,crythias/otrs,rudy500/otrs,s7design/otrs,MBRG/otrs,xhoy/otrs,rudy500/otrs,mburggraf/otrs,crythias/otrs,s7design/otrs,MBRG/otrs,MBRG/otrs,rudy500/otrs,crythias/otrs,xhoy/otrs,s7design/otrs