production server updated
(In [197]) re #110, corrected the prepare.py for trac 4932
(In [195]) re #110, updated trac external to 4932
(In [194]) re #110, updated plugin externals to work with trac 4868
(In [193]) re #110, use of reworked original trac loader (see trac:#4317) (corrected trac ticket number)
(In [192]) re #110, use of reworked original trac loader (see trac:#4190) makes modified/loader.py obsolete
(In [191]) re #110, merged the revisions 4868 into the customized templates