The OSGi bundle Repository page is currently not available anymore at the web console. This prevents applications like the Sling JCRBrowser to get installed easily and get it's dependencies resolved automatically.
As Felix pointed out in the mailing list , this page has been separated out into an other Web Console plugin bundle. I personally guess this happened in Apache Felix.
To get it back in Apache Sling, I suggest to add it to the bundle list.xml of the launchpad (launchpad/builder/src/main/bundles/list.xml). The level 5 for the web console should be appropriate.
This is how the bundle entry should look like:
What do you think?