Added isESRF() and isEMBL() to EDUtilsPath. Minor changes to Autoproc

1. Added isEMBL() and isESRF() to EDUtilsPath
2. Added site check in Autoproc unit

I deleted one line to much in mxPluginExec/plugins/EDPluginGroupAutoproc-v1.0/plugins/EDPluginExecMinimalXdsv1_0.py
Line 161 needs to be restored.

In general these files needs revision, maybe they could be used without site check