0.13dev: make rendering of source: link more robust in case of unavailability of the repository (fix similar to r10470)
0.13dev: make rendering of source: link more robust in case of unavailability of the repository (fix similar to r10470)

git-svn-id: f68c6b3b1dcd5d00a2560c384475aaef3bc99487@10471 af82e41b-90c4-0310-8c96-b1721e28e2e2

exocad/exotrac,exocad/exotrac,exocad/exotrac,exocad/exotrac